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  • C07D491/02—Heterocyclic compounds containing in the condensed ring system both one or more rings having oxygen atoms as the only ring hetero atoms and one or more rings having nitrogen atoms as the only ring hetero atoms, not provided for by groups C07D451/00 - C07D459/00, C07D463/00, C07D477/00 or C07D489/00 in which the condensed system contains two hetero rings
  • C07D491/10—Spiro-condensed systems
  • C07D491/107—Spiro-condensed systems with only one oxygen atom as ring hetero atom in the oxygen-containing ring

Definitions

• the present invention provides cyclobutyl substituted pyrrolopyrimidines and pyrrolopyridines, as well as their compositions and methods of use, that modulate the activity of Janus kinases (JAKs) and are useful in the treatment of diseases related to the activity of JAKs including, for example, inflammatory disorders, autoimmune disorders, cancer, and other diseases.
• JAKs Janus kinases
• Protein kinases regulate diverse biological processes including cell growth, survival, differentiation, organ formation, morphogenesis, neovascularization, tissue repair, and regeneration, among others. Protein kinases also play specialized roles in a host of human diseases including cancer. Cytokines, low-molecular weight polypeptides or glycoproteins, regulate many pathways involved in the host inflammatory response to sepsis. Cytokines influence cell differentiation, proliferation and activation, and can modulate both pro-inflammatory and anti-inflammatory responses to allow the host to react appropriately to pathogens.
• JAKs Janus kinase family
• JAK2 Janus kinase- 1
• JAK2 JAK2
• JAK3 also known as Janus kinase, leukocyte
• JAKL protein-tyrosine kinase 2
• TYK2 protein-tyrosine kinase 2
• autoimmune diseases e.g., asthma, systemic lupus erythematosus, thyroiditis, myocarditis
• illnesses such as scleroderma and osteoarthritis (Ortmann, R. A., T. Cheng, et al. (2000) Arthritis Res 2(1): 16-32).
• JAKs Deficiencies in expression of JAKs are associated with many disease states. For example, Jakl-/- mice are runted at birth, fail to nurse, and die perinatally (Rodig, S. J., M. A. Meraz, et al. (1998) Cell 93(3): 373-83). Jak2-/- mouse embryos are anemic and die around day 12.5 postcoitum due to the absence of definitive erythropoiesis.
• the JAK/STAT pathway and in particular all four JAKs, are believed to play a role in the pathogenesis of asthmatic response, chronic obstructive pulmonary disease, bronchitis, and other related inflammatory diseases of the lower respiratory tract.
• cytokines that signal through JAKs have been linked to inflammatory diseases/conditions of the upper respiratory tract, such as those affecting the nose and sinuses ⁇ e.g., rhinitis and sinusitis) whether classically allergic reactions or not.
• the JAK/STAT pathway has also been implicated in inflammatory diseases/conditions of the eye and chronic allergic responses.
• JAK STAT Activation of JAK STAT in cancers may occur by cytokine stimulation ⁇ e.g. IL-6 or GM-CSF) or by a reduction in the endogenous suppressors of JAK signaling such as SOCS (suppressor or cytokine signaling) or PIAS (protein inhibitor of activated STAT) (Boudny, V., and Kovarik, J., Neoplasm. 49:349-355, 2002).
• SOCS suppressor or cytokine signaling
• PIAS protein inhibitor of activated STAT
• Activation of STAT signaling, as well as other pathways downstream of JAKs ⁇ e.g., Akt has been correlated with poor prognosis in many cancer types (Bowman, T., et al. Oncogene 19:2474-2488, 2000). Elevated levels of circulating cytokines that signal through JAK/STAT play a causal role in cachexia and/or chronic fatigue. As such, JAK inhibition may be beneficial
• JAK2 tyrosine kinase can be beneficial for patients with myeloproliferative disorders, e.g., polycythemia vera (PV), essential thrombocythemia (ET), myeloid metaplasia with myelofibrosis (MMM) (Levin, et al, Cancer Cell, vol. 7, 2005: 387- 397).
• PV polycythemia vera
• ET essential thrombocythemia
• MMM myeloid metaplasia with myelofibrosis
• Inhibition of the JAK2V617F kinase decreases proliferation of hematopoietic cells, suggesting JAK2 as a potential target for pharmacologic inhibition in patients with PV, ET, and MMM.
• Inhibition of the JAKs may benefit patients suffering from skin immune disorders such as psoriasis, and skin sensitization.
• the maintenance of psoriasis is believed to depend on a number of inflammatory
• JAK inhibitors including pyrrolopyridine and pyrrolopyrimidines, are reported in U.S. Ser. No. 11/637,545, filed December 12, 2006.
• new or improved agents which inhibit kinases such as JAKs are continually needed for developing new and more effective pharmaceuticals that are aimed at augmentation or suppression of the immune and inflammatory pathways (such as immunosuppressive agents for organ transplants), as well as agents for the prevention and treatment of autoimmune diseases, diseases involving a hyperactive inflammatory response (e.g., eczema), allergies, cancer (e.g., prostate, leukemia, multiple myeloma), and some immune reactions (e.g. , skin rash or contact dermatitis or diarrhea) caused by other therapeutics.
• the compounds of the invention, as well as its compositions and methods described herein are directed toward these needs and other ends.
• the present invention provides, inter alia, compounds of Formula I:
• the present invention further provides pharmaceutical compositions comprising a compound of Formula I as described herein, or a pharmaceutically acceptable salt thereof, and at least one pharmaceutically acceptable carrier.
• the present invention further provides methods of modulating an activity of JAK1 comprising contacting JAK1 with a compound of Formula I as described herein, or a pharmaceutically acceptable salt thereof.
• the present invention further provides methods of treating a disease or a disorder associated with abnormal kinase expression or activity in a patient by administering to a patient a therapeutically effective amount of a compound of Formula I as described herein, or a pharmaceutically acceptable salt thereof.
• the present invention further provides methods of treating an autoimmune disease, a cancer, a myeloproliferative disorder, an inflammatory disease, a bone resorption disease, or organ transplant rejection in a patient in need thereof, comprising administering to said patient a therapeutically effective amount of a compound of Formula I as described herein, or a pharmaceutically acceptable salt thereof.
• the present invention also provides compounds of Formula I as described herein, or pharmaceutically acceptable salts thereof, as described herein for use in methods of treating autoimmune diseases, cancer, myeloproliferative disorders, inflammatory diseases, a bone resorption disease, or organ transplant rejection.
• the present invention further provides compounds of Formula I as described herein, or pharmaceutically acceptable salts thereof, for use in methods of modulating a JAK1.
• the present invention also provides uses of compounds of Formula I as described herein, or pharmaceutically acceptable salts thereof, for the preparation of medicaments for use in treating autoimmune diseases, cancer, myeloproliferative disorders, inflammatory diseases, a bone resorption disease, or organ transplant rejection.
• the present invention further provides uses of compounds of Formula I as described herein, or pharmaceutically acceptable salts thereof, for the preparation of medicaments for use in methods of modulating a JAK1.
• the present invention provides, inter alia, a compound of Formula I:
• X is CH or N
• Y is H, cyano, halo, Ci_ 3 alkyl, or Ci_ 3 haloalkyl;
• Z is CR 4 or N
• W is CH or N
• R 1 , R 2 , R 3 , and R 4 are each independently H, hydroxy, halo, Ci_ 3 alkyl, or Ci_ 3 haloalkyl;
• each R 5 is independently hydroxy, Ci_ 4 alkoxy, fluorine, Ci_ 4 alkyl, hydroxy-Ci_ 4 - alkyl, Ci_ 4 alkoxy-Ci_ 4 -alkyl, or Ci_ 4 fluoroalkyl;
• each R 6 is, independently, H or Ci_ 4 alkyl; or two R 6 groups, together with the carbon atom to which they are attached, form a 3-, 4-, 5-, or 6-membered cycloalkyl ring;
• R 7 is H or Ci_ 4 alkyl
• R 7a is H, OH, CN, Ci_4 alkoxy, or Ci_ 4 alkyl;
• each R a , R c , R d , R e , and R f is independently selected from H, Ci_ 6 alkyl, Ci_ 6 haloalkyl, C 2 _ 6 alkenyl, C 2 _ 6 alkynyl, C 3 _io cycloalkyl, C 3 _io cycloalkyl-Ci_ 4 -alkyl, C 2 _io heterocycloalkyl, C 2 _io heterocycloalkyl-Ci_ 4 -alkyl, C 6 -io aryl, C 6 -io aryl-C 1-4 -alkyl, C 1-10 heteroaryl, and C 1-10 heteroaryl-Ci_ 4 -alkyl; wherein said Ci_ 6 alkyl, C 2 _ 6 alkenyl, C 2 _ 6 alkynyl, C 3 _i 0 cycloalkyl, C 3 _i 0 cycloalkyl-
• heterocycloalkyl-Ci_ 3 -alkyl, phenyl, phenyl-Ci_ 3 -alkyl, Ci_ 7 heteroaryl, and Ci_ 7 heteroaryl-Ci_ 3 -alkyl are each optionally substituted with 1, 2, 3, or 4 independently selected R h groups;
• each R al , R cl , R dl , R el , and R fl is independently selected from H, Ci_ 6 alkyl, Ci_ 6 haloalkyl, C 2 _ 6 alkenyl, C 2 _ 6 alkynyl, C 3 _ 7 cycloalkyl, C 3 _ 7 cycloalkyl-Ci_ 3 -alkyl, C 2 _ 7 heterocycloalkyl, C 2 _ 7 heterocycloalkyl-Ci_ 3 -alkyl, phenyl, phenyl-Ci_ 3 -alkyl, Ci_ 7 heteroaryl, and Ci_ 7 heteroaryl-Ci_ 3 -alkyl; wherein said Ci_ 6 alkyl, C 2 _ 6 alkenyl, C 2 _ 6 alkynyl, C 3 _ 7 cycloalkyl, C 3 _ 7 cycloalkyl-Ci_ 3 -alkyl, C 2 _
• heterocycloalkyl-Ci_ 3 -alkyl, phenyl, phenyl-Ci_ 3 -alkyl, Ci_ 7 heteroaryl, and Ci_ 7 heteroaryl-Ci_ 3 -alkyl are each optionally substituted by 1, 2, 3, or 4 independently selected R h groups;
• each R bl is independently selected from Ci_ 6 alkyl, Ci_ 6 haloalkyl, C 2 _ 6 alkenyl, C 2 _ 6 alkynyl, C 3 _ 7 cycloalkyl, C 3 _ 7 cycloalkyl-Ci_ 3 -alkyl, C 2 _ 7 heterocycloalkyl, C 2 _ 7 heterocycloalkyl-Ci_ 3 -alkyl, phenyl, phenyl-Ci_ 3 -alkyl, Ci_ 7 heteroaryl, and Ci_ 7 heteroaryl-Ci_ 3 -alkyl; wherein said Ci_ 6 alkyl, C 2 _ 6 alkenyl, C 2 _ 6 alkynyl, C 3 _ 7 cycloalkyl, C3-7 cycloalkyl-Ci_3-alkyl, C 2 -7 heterocycloalkyl, C 2 - 7 heterocycloalkyl-Ci_3-alkyl,
• each R h is independently selected from cyano, halo, hydroxy, Ci_ 4 alkyl, Ci_ 4 haloalkyl, Ci_ 4 alkoxy, Ci_ 4 haloalkoxy, amino, Ci_ 4 alkylamino, di-Ci_ 4 -alkylamino, hydroxy-Ci_ 4 alkyl, Ci_ 4 alkoxy-Ci_ 4 alkyl, cyano-Ci_ 4 alkyl, thio, Ci_ 6 alkylthio, Ci_ 6 alkylsulfinyl, Ci_ 6 alkylsulfonyl, carbamyl, Ci_ 6 alkylcarbamyl, di(Ci_ 6 alkyl)carbamyl, carboxy, Ci_ 6 alkylcarbonyl, Ci_ 6 alkoxycarbonyl, Ci_ 6 alkylcarbonylamino, Ci_ 6 alkylsulfonylamino, aminosulfonyl, Ci_ 6 alkylaminosulf
• n 0, 1, or 2;
• n 0, 1, 2, 3, or 4.
• X is CH or N
• Y is H, cyano, halo, Ci_3 alkyl, or Ci_3 haloalkyl;
• Z is CR 4 or N
• W is CH or N
• R 1 , R 2 , R 3 , and R 4 are each independently H, hydroxy, halo, Ci_3 alkyl, or Ci_3 haloalkyl;
• each R 5 is independently hydroxy, Ci_ 4 alkoxy, fluorine, Ci_ 4 alkyl, hydroxy-Ci_ 4 - alkyl, Ci_ 4 alkoxy-Ci_ 4 -alkyl, or Ci_ 4 fluoroalkyl;
• each R 6 is, independently, H or Ci_ 4 alkyl
• R 6 groups together with the carbon atom to which they are attached, form a 3-, 4-, 5-, or 6-membered cycloalkyl ring;
• R is H or Ci_ 4 alkyl;
• each R a , R c , R d , R e , and R f is independently selected from H, Ci_ 6 alkyl, Ci_ 6 haloalkyl, C 2 _ 6 alkenyl, C 2 _ 6 alkynyl, C 3 _io cycloalkyl, C 3 _io cycloalkyl-Ci_ 4 -alkyl, C 2 _io heterocycloalkyl, C 2 _io heterocycloalkyl-Ci_ 4 -alkyl, C 6 _io aryl, C 6 _io aryl-C 1-4 -alkyl, C 1-10 heteroaryl, and C 1-10 heteroaryl-Ci_ 4 -alkyl; wherein said Ci_ 6 alkyl, C 2 _ 6 alkenyl, C 2 _ 6 alkynyl, C 3 _io cycloalkyl, C 3 _io cycloalkyl-Ci
• each R b is independently selected from Ci_ 6 alkyl, Ci_ 6 haloalkyl, C 2 _ 6 alkenyl, C 2 _ 6 alkynyl, C 3 _io cycloalkyl, C 3 _io cycloalkyl-Ci_ 4 -alkyl, C 2 _io heterocycloalkyl, C 2 _io heterocycloalkyl-Ci_ 4 -alkyl, C 6 -io aryl, C 6 -io aryl-C 1-4 -alkyl, C 1-10 heteroaryl, and C 1-10 heteroaryl-Ci_ 4 -alkyl; wherein said Ci_ 6 alkyl, C 2 _ 6 alkenyl, C 2 _ 6 alkynyl, C 3 _i 0 cycloalkyl, C 3 _io cycloalkyl-Ci_4-alkyl, C 2 _io heterocycloalkyl, C 2
• heterocycloalkyl-Ci_ 3 -alkyl, phenyl, phenyl-Ci_ 3 -alkyl, Ci_ 7 heteroaryl, and Ci_ 7 heteroaryl-Ci_ 3 -alkyl are each optionally substituted with 1, 2, 3, or 4 independently selected R h groups;
• each R al , R cl , R dl , R el , and R fl is independently selected from H, Ci_ 6 alkyl, Ci_ 6 haloalkyl, C 2 _ 6 alkenyl, C 2 _ 6 alkynyl, C 3 _ 7 cycloalkyl, C 3 _ 7 cycloalkyl-Ci_ 3 -alkyl, C 2 _ 7 heterocycloalkyl, C 2 _ 7 heterocycloalkyl-Ci_ 3 -alkyl, phenyl, phenyl-Ci_ 3 -alkyl, Ci_ 7 heteroaryl, and Ci_ 7 heteroaryl-Ci_ 3 -alkyl; wherein said Ci_ 6 alkyl, C 2 _ 6 alkenyl, C 2 _ 6 alkynyl, C 3 _ 7 cycloalkyl, C 3 _ 7 cycloalkyl-Ci_ 3 -alkyl, C 2 _
• heterocycloalkyl-Ci_ 3 -alkyl, phenyl, phenyl-Ci_ 3 -alkyl, Ci_ 7 heteroaryl, and Ci_ 7 heteroaryl-Ci_ 3 -alkyl are each optionally substituted by 1, 2, 3, or 4 independently selected R h groups;
• each R bl is independently selected from Ci_ 6 alkyl, Ci_ 6 haloalkyl, C 2 _ 6 alkenyl, C 2 _ 6 alkynyl, C 3 _ 7 cycloalkyl, C 3 _ 7 cycloalkyl-Ci_ 3 -alkyl, C 2 _ 7 heterocycloalkyl, C 2 _ 7 heterocycloalkyl-Ci_ 3 -alkyl, phenyl, phenyl-Ci_ 3 -alkyl, Ci_ 7 heteroaryl, and Ci_ 7 heteroaryl-Ci_ 3 -alkyl; wherein said Ci_ 6 alkyl, C 2 _ 6 alkenyl, C 2 _ 6 alkynyl, C 3 _ 7 cycloalkyl, C 3 _ 7 cycloalkyl-Ci_ 3 -alkyl, C 2 _ 7 heterocycloalkyl, C 2 _ 7 heterocycloalkyl-Ci_ 3
• each R h is independently selected from cyano, halo, hydroxy, Ci_ 4 alkyl, Ci_ 4 haloalkyl, Ci_ 4 alkoxy, Ci_ 4 haloalkoxy, amino, Ci_ 4 alkylamino, di-Ci_ 4 -alkylamino, thio, Ci_6 alkylthio, Ci_ 6 alkylsulfinyl, Ci_ 6 alkylsulfonyl, carbamyl, Ci_ 6 alkylcarbamyl, di(Ci_ 6 alkyl)carbamyl, carboxy, Ci_ 6 alkylcarbonyl, Ci_ 6 alkoxycarbonyl, Ci_ 6 alkylcarbonylamino, Ci_ 6 alkylsulfonylamino, aminosulfonyl, Ci_ 6 alkylaminosulfonyl, di(Ci_6 alkyl)aminosulfonyl, aminosulfonylamino, Ci_ 6 alkyl
• n 0, 1, or 2;
• n 0, 1, 2, 3, or 4.
• X is N.
• Z is N.
• Z is CH.
• W is N.
• R 6 is H.
• R 7 is H or methyl.
• R 7a is CN
• R 6 is H
• R 7 is H or methyl
• R 7a is CN
• W is CH.
• L is O.
• Y is cyano.
• R 1 , R 2 , R 3 , and R 4 are each H.
• n 0, 1, or 2.
• n 0.
• m is 1.
• A is Ci_ 6 alkyl, optionally substituted with p independently selected R 8 substituents.
• A is C 3-10 cycloalkyl, optionally substituted with p independently selected R 8 substituents.
• A is C 6 -io aryl, optionally substituted with p independently selected R 8 substituents.
• A is C 2-10 heterocycloalkyl, optionally substituted with p independently selected R 8 substituents.
• A is C 1-10 heteroaryl, optionally substituted with p independently selected R 8 substituents.
• A is methyl, ethyl, cyclopropyl, phenyl, a pyrrolidine ring, a piperidine ring, a pyridine ring, a pyrimidine ring, a thiazole ring, or a pyrazine ring; each of which is optionally substituted with p independently selected R 8 substituents.
• each R 8 is independently selected from halo, cyano, nitro, Ci_6 alkyl, Ci_ 6 haloalkyl, C 3-10 cycloalkyl, C 3-10 cycloalkyl-Ci_4-alkyl, C 2-10
• each R 8 is independently selected from halo, cyano, Ci_ 6 alkyl, Ci_ 6 haloalkyl, -OR a , or -NR e R f ; wherein said Ci_ 6 alkyl is optionally substituted by 1, 2, 3, or 4 independently selected R g groups.
• heterocycloalkyl is optionally substituted with 1, 2, 3, or 4 independently selected R h groups.
• each R g is independently selected from C 2 -7
• heterocycloalkyl and -NR el R fl wherein said C 2 -7 heterocycloalkyl is optionally substituted by 1, 2, 3, or 4 independently selected R h groups.
• each R g is independently selected from C 2 -7
• heterocycloalkyl -OR al , -NR el R fl ; wherein said C 2 -7 heterocycloalkyl is optionally substituted by 1 or 2 R h groups independently selected from fluoro, OH, Ci_ 3 alkyl, Ci_ 3 alkoxy, and hydroxy-Ci_4 alkyl; and wherein each R al , R el and R fl are independently selected from H, C 3 _ 7 cycloalkyl, and Ci_ 6 alkyl.
• each R h is independently Ci_ 4 alkyl.
• each R h is independently selected from fluoro, OH, Ci_ 3 alkyl, Ci_ 3 alkoxy, and hydroxy-Ci_ 4 alkyl.
• each R a , R c , R d , R e , and R f is independently selected from H, Ci_ 6 alkyl, and Ci_ 6 haloalkyl;
• each R b is independently selected from Ci_ 6 alkyl and Ci_ 6 haloalkyl;
• each R al , R cl , R dl , R el , and R fl is independently selected from H, Ci_ 6 alkyl, and Ci_6 haloalkyl;
• each R bl is independently selected from Ci_ 6 alkyl and Ci_ 6 haloalkyl.
• p is 1, 2, or 3.
• X is N
• R 1 , R 2 , and R 3 are each H;
• Y is cyano
• R a , R c , R d , R e , and R f is independently selected from H, Ci_ 6 alkyl, and Ci_ 6 haloalkyl
• each R b is independently selected from Ci_ 6 alkyl and Ci_ 6 haloalkyl;
• each R al , R cl , R dl , R el , and R fl is independently selected from H, Ci_ 6 alkyl, and Ci_6 haloalkyl;
• n 0;
• X is N
• R 1 , R 2 , and R 3 are each H;
• Y is cyano
• each R b is independently selected from Ci_ 6 alkyl and Ci_ 6 haloalkyl;
• each R al , R cl , R dl , R el , and R fl is independently selected from H, Ci_ 6 alkyl, and
• each R bl is independently selected from Ci_ 6 alkyl and Ci_ 6 haloalkyl;
• n 0;
• X is N
• R 1 , R 2 , and R 3 are each H;
• Y is cyano
• W is CH and L is O;
• A is Ci_6 alkyl, C 3 _i 0 cycloalkyl, C 2 _i 0 heterocycloalkyl, C 6 _io aryl, or Ci_i 0 heteroaryl; wherein said Ci_ 6 alkyl, C 3 _io cycloalkyl, C 2 _io heterocycloalkyl, C 6 -io aryl, and Ci_io heteroaryl are each optionally substituted with p independently selected R 8 substituents; wherein p is 1, 2, 3, 4, or 5; each R 8 is independently selected from halo, cyano, Ci_ 6 alkyl, Ci_ 6 haloalkyl, -OR a , or -NR e R f ; wherein said Ci_ 6 alkyl is optionally substituted by 1, 2, 3, or 4 independently selected R g groups;
• each R g is independently selected from C 2 -7 heterocycloalkyl and -NR el R fl ; wherein said C 2 -7 heterocycloalkyl is optionally substituted by 1, 2, 3, or 4 independently selected R h groups;
• each R h is independently selected from Ci_ 4 alkyl
• each R a , R e , and R f is independently selected from H, Ci_ 6 alkyl, and Ci_ 6 haloalkyl;
• each R al , R el , and R fl is independently selected from H, Ci_ 6 alkyl, and Ci_ 6 haloalkyl;
• n 0;
• X is N
• R 1 , R 2 , and R 3 are each H;
• Y is cyano
• R 6 is H
• R 7 is H or methyl
• A is methyl, ethyl, cyclopropyl, phenyl, a pyrrolidine ring, a piperidine ring, a pyridine ring, a pyrimidine ring, a thiazole ring, or a pyrazine ring; each of which is optionally substituted with p independently selected R 8 substituents; wherein p is 1, 2, or 3;
• each R 8 is independently selected from halo, cyano, Ci_ 6 alkyl, Ci_ 6 haloalkyl, -OR a , or -NR e R f ; wherein said Ci_ 6 alkyl is optionally substituted by 1, 2, 3, or 4 independently selected R g groups; each R g is independently selected from C 2 -7 heterocycloalkyl and -NR el R fl ; wherein said C 2 _7 heterocycloalkyl is optionally substituted by 1, 2, 3, or 4 independently selected R h groups;
• each R h is independently Ci_ 4 alkyl
• each R a , R e , and R f is independently selected from H, Ci_ 6 alkyl, and Ci_ 6 haloalkyl;
• each R al , R el , and R fl is independently selected from H, Ci_ 6 alkyl, and Ci_ 6 haloalkyl;
• n 0;
• X is N
• R 1 , R 2 , and R 3 are each H;
• Y is cyano
• W is CH and L is O;
• R 6 is H
• R 7 is H or methyl
• A is phenyl, which is optionally substituted with p independently selected R 8 substituents; wherein p is 1, 2, or 3;
• each R 8 is independently selected from halo, cyano, Ci_ 6 alkyl, Ci_ 6 haloalkyl, -OR a , or -NR e R f ; wherein said Ci_ 6 alkyl is optionally substituted by p independently selected R g groups;
• each R g is independently selected from C 2 -7 heterocycloalkyl and -NR el R fl ; wherein said C 2 -7 heterocycloalkyl is optionally substituted by 1, 2, 3, or 4 independently selected R h groups;
• each R h is independently Ci_ 4 alkyl
• each R a , R e , and R f is independently selected from H, Ci_ 6 alkyl, and Ci_ 6 haloalkyl; each R al , R el , and R fl is independently selected from H, Ci_ 6 alkyl, and Ci_ 6 haloalkyl;
• n 0;
• X is N
• R 1 , R 2 , and R 3 are each H;
• Y is cyano
• W is CH and L is O;
• R 6 is H
• R 7 is H or methyl
• R 7a is CN
• A is H, methyl, ethyl, propyl, isopropyl, isobutyl, sec-butyl, 1 ,2-dimethylpropyl, l-(tert-butyl)methyl, cyclopropyl, cyclobutyl, cyclopentyl, cyclohexyl, phenyl, a tetrahydropyran ring, a pyrrolidine ring, a piperidine ring, a pyridine ring, a pyrimidine ring, a thiazole ring, or a pyrazine ring; wherein said methyl, ethyl, propyl, isopropyl, isobutyl, sec-butyl, 1 ,2-dimethylpropyl, l-(tert-butyl)methyl, cyclopropyl, cyclobutyl, cyclopentyl, cyclohexyl, phenyl, a
• each R g is independently selected from C 2 _ 7 heterocycloalkyl, -OR al , -NR el R fl ; wherein said C 2 _ 7 heterocycloalkyl is optionally substituted by 1 or 2 R h groups independently selected from fluoro, OH, Ci_ 3 alkyl, Ci_ 3 alkoxy, and hydroxy-Ci_4 alkyl; and wherein each R al , R el and R fl are independently selected from H, C 3 _ 7 cycloalkyl, and Ci_6 alkyl;
• p is 1 , 2, or 3;
• n 1 ;
• n 0.
• X is N
• Y is cyano
• W is CH and L is O;
• R 6 is H
• R 7 is H or methyl
• A is methyl, ethyl, propyl, isopropyl, isobutyl, sec-butyl, 1 ,2-dimethylpropyl, 1- (tert-butyl)methyl, cyclopropyl, cyclobutyl, cyclopentyl, cyclohexyl, phenyl, a tetrahydropyran ring, a pyrrolidine ring, a piperidine ring, a pyridine ring, a pyrimidine ring, a thiazole ring, or a pyrazine ring; each of which is optionally substituted with p independently selected R 8 substituents;
• each R g is independently selected from C 2 _ 7 heterocycloalkyl, -OR al , -NR el R fl ; wherein said C 2 _ 7 heterocycloalkyl is optionally substituted by 1 or 2 R h groups independently selected from fluoro, OH, Ci_ 3 alkyl, Ci_ 3 alkoxy, and hydroxy-Ci_4 alkyl; and wherein each R al , R el and R fl are independently selected from H, C 3 _ 7 cycloalkyl, and Ci_6 alkyl; p is 1, 2, or 3;
• n 1 ;
• n 0.
• the compound is a compound of Formula II:
• the compound is a compound of Formula III:
• the compound is a compound of Formula IV:
• the com ound is a compound of V:
• the compound is a compound selected from:
• the cyclobutyl ring in Formula I is the cis form.
• the cyclobutyl ring in Formula I is the trans form.
• R 5 is hydroxy or Ci_ 4 alkoxy and n is not 0, then R 5 is not attached to a carbon adjacent to a nitrogen ring member.
• divalent linking substituents are described. It is specifically intended that each divalent linking substituent include both the forward and backward forms of the linking substituent. For example, -NR(CR'R") n - includes both -NR(CR'R")n- and -(CR'R") practicNR-. Where the structure clearly requires a linking group, the Markush variables listed for that group are understood to be linking groups.
• n-membered where n is an integer typically describes the number of ring-forming atoms in a moiety where the number of ring-forming atoms is n.
• piperidinyl is an example of a 6-membered heterocycloalkyl ring
• pyrazolyl is an example of a 5-membered heteroaryl ring
• pyridyl is an example of a 6-membered heteroaryl ring
• 1,2,3,4-tetrahydro-naphthalene is an example of a 10-membered cycloalkyl group.
• each variable can be a different moiety independently selected from the group defining the variable.
• the two R groups can represent different moieties independently selected from the group defined for R.
• an optionally multiple substituent is designated in the form:
• substituent R can occur p number of times on the ring, and R can be a different moiety at each occurrence. It is to be understood that each R group may replace any hydrogen atom attached to a ring atom, including one or both of the (CH 2 ) n hydrogen atoms. Further, in the above example, should the variable Q be defined to include hydrogens, such as when Q is the to be CH 2 , NH, etc., any floating substituent such as R in the above example, can replace a hydrogen of the Q variable as well as a hydrogen in any other non-variable component of the ring.
• the phrase "optionally substituted” means unsubstituted or substituted.
• substituted means that a hydrogen atom is removed and replaced by a substituent. It is to be understood that substitution at a given atom is limited by valency.
• C n _ m indicates a range which includes the endpoints, wherein n and m are integers and indicate the number of carbons. Examples include C 1-4 , Ci_ 6 , and the like.
• C n _ m alkyl refers to a saturated hydrocarbon group that may be straight-chain or branched, having n to m carbons.
• the alkyl group contains from 1 to 6 carbon atoms, from 1 to 4 carbon atoms, from 1 to 3 carbon atoms, or 1 to 2 carbon atoms.
• alkyl moieties include, but are not limited to, chemical groups such as methyl, ethyl, n-propyl, isopropyl, n-butyl, tert-butyl, isobutyl, sec -butyl; higher homo logs such as 2 -methyl- 1 -butyl, n-pentyl, 3-pentyl, n-hexyl, 1,2,2-trimethylpropyl, and the like.
• alkylene employed alone or in combination with other terms, refers to a divalent alkyl linking group.
• alkylene groups include, but are not limited to, ethan-l,2-diyl, propan-l,3-diyl, propan-l,2-diyl, butan-l,4-diyl, butan- 1,3-diyl, butan-l,2-diyl, 2-methyl-propan-l,3-diyl, and the like.
• C n _ m alkenyl refers to an alkyl group having one or more double carbon-carbon bonds and having n to m carbons.
• the alkenyl moiety contains 2 to 6 or to 2 to 4 carbon atoms.
• Example alkenyl groups include, but are not limited to, ethenyl, n-propenyl, isopropenyl, n-butenyl, sec-butenyl, and the like.
• C n _ m alkynyl refers to an alkyl group having one or more triple carbon-carbon bonds and having n to m carbons.
• Example alkynyl groups include, but are not limited to, ethynyl, propyn-l-yl, propyn-2-yl, and the like.
• the alkynyl moiety contains 2 to 6 or 2 to 4 carbon atoms.
• C n _ m alkoxy refers to a group of formula -O-alkyl, wherein the alkyl group has n to m carbons.
• Example alkoxy groups include methoxy, ethoxy, propoxy (e.g., n-propoxy and isopropoxy), t-butoxy, and the like.
• the alkyl group has 1 to 6 or 1 to 4 carbon atoms.
• C n _ m alkylamino refers to a group of formula
• the alkyl group has n to m carbon atoms. In some embodiments, the alkyl group has 1 to 6 or 1 to 4 carbon atoms.
• the term "di-C n _ m -alkylamino" refers to a group of formula - N(alkyl) 2 , wherein the two alkyl groups each has, independently, n to m carbon atoms. In some embodiments, each alkyl group independently has 1 to 6 or 1 to 4 carbon atoms.
• C n _ m alkoxycarbonyl refers to a group of formula -C(0)0-alkyl, wherein the alkyl group has n to m carbon atoms. In some embodiments, the alkyl group has 1 to 6 or 1 to 4 carbon atoms.
• C n _ m alkylcarbonyl refers to a group of formula -C(O)- alkyl, wherein the alkyl group has n to m carbon atoms. In some embodiments, the alkyl group has 1 to 6 or 1 to 4 carbon atoms.
• C n _ m alkylcarbonylamino refers to a group of formula -NHC(0)-alkyl, wherein the alkyl group has n to m carbon atoms.
• the alkyl group has 1 to 6 or 1 to 4 carbon atoms.
• C n _ m alkylsulfonylamino refers to a group of formula -NHS(0) 2 -alkyl, wherein the alkyl group has n to m carbon atoms.
• the alkyl group has 1 to 6 or 1 to 4 carbon atoms.
• aminosulfonyl employed alone or in combination with other terms, refers to a group of formula -S(0) 2 NH 2 .
• C n _ m alkylaminosulfonyl refers to a group of formula -S(0) 2 NH(alkyl), wherein the alkyl group has n to m carbon atoms.
• the alkyl group has 1 to 6 or 1 to 4 carbon atoms.
• di(C n _ m alkyl)aminosulfonyl refers to a group of formula -S(0) 2 N(alkyl) 2 , wherein each alkyl group independently has n to m carbon atoms. In some embodiments, each alkyl group has, independently, 1 to 6 or 1 to 4 carbon atoms.
• aminosulfonylamino refers to a group of formula - NHS(0) 2 NH 2 .
• C n _ m alkylaminosulfonylamino refers to a group of formula -NHS(0) 2 NH(alkyl), wherein the alkyl group has n to m carbon atoms. In some embodiments, the alkyl group has 1 to 6 or 1 to 4 carbon atoms.
• di(C n _ m alkyl)aminosulfonylamino refers to a group of formula -NHS(0)2N(alkyl) 2 , wherein each alkyl group independently has n to m carbon atoms. In some embodiments, each alkyl group has, independently, 1 to 6 or 1 to 4 carbon atoms.
• aminocarbonylamino refers to a group of formula
• C n _ m alkylaminocarbonylamino refers to a group of formula -NHC(0)NH(alkyl), wherein the alkyl group has n to m carbon atoms. In some embodiments, the alkyl group has 1 to 6 or 1 to 4 carbon atoms.
• di(C n _ m alkyl)aminocarbonylamino refers to a group of formula -NHC(0)N(alkyl) 2 , wherein each alkyl group independently has n to m carbon atoms. In some embodiments, each alkyl group has, independently, 1 to 6 or 1 to 4 carbon atoms.
• C n _ m alkylcarbamyl refers to a group of formula -C(O)- NH(alkyl), wherein the alkyl group has n to m carbon atoms. In some embodiments, the alkyl group has 1 to 6 or 1 to 4 carbon atoms.
• di(C n _ m -alkyl)carbamyl refers to a group of formula - C(0)N(alkyl) 2 , wherein the two alkyl groups each has, independently, n to m carbon atoms. In some embodiments, each alkyl group independently has 1 to 6 or 1 to 4 carbon atoms.
• thio refers to a group of formula -SH.
• C n _ m alkylthio refers to a group of formula -S-alkyl, wherein the alkyl group has n to m carbon atoms. In some embodiments, the alkyl group has 1 to 6 or 1 to 4 carbon atoms.
• C n _ m alkylsulfmyl refers to a group of formula -S(O)- alkyl, wherein the alkyl group has n to m carbon atoms. In some embodiments, the alkyl group has 1 to 6 or 1 to 4 carbon atoms.
• C n _ m alkylsulfonyl refers to a group of formula -S(0) 2 - alkyl, wherein the alkyl group has n to m carbon atoms. In some embodiments, the alkyl group has 1 to 6 or 1 to 4 carbon atoms.
• amino refers to a group of formula -NH 2 .
• hydroxy-C n _ m -alkyl refers to a group of formula - alkylene-OH, wherein said alkylene group has n to m carbon atoms.
• the alkylene group has 1 to 4 carbon atoms.
• C 0 _ p alkoxy-C n _ m -alkyl refers to a group of formula - alkylene-O-alkyl, wherein said alkylene group has n to m carbon atoms and said alkyl group has o to p carbon atoms.
• the alkyl and alkylene groups each independently have 1 to 4 carbon atoms.
• cyano-C n _ m -alkyl refers to a group of formula - alkylene-CN, wherein said alkylene group has n to m carbon atoms.
• the alkylene group has 1 to 4 carbon atoms.
• aryl refers to a monocyclic or polycyclic (e.g., having 2, 3 or 4 fused rings) aromatic hydrocarbon, such as, but not limited to, phenyl, 1-naphthyl, 2-naphthyl, anthracenyl, phenanthrenyl, and the like.
• aryl is C 6 -io aryl.
• the aryl group is a naphthalene ring or phenyl ring.
• the aryl group is phenyl.
• arylalkyl refers to a group of formula -alkylene-aryl. In some embodiments, arylalkyl is C6 -10 aryl-Ci_ 3 alkyl. In some embodiments, arylalkyl is benzyl.
• carboxylate refers to a group of formula -C(0)NH 2 .
• carbonyl employed alone or in combination with other terms, refers to a -C(O)- group.
• carboxy refers to a group of formula -C(0)OH.
• cycloalkyl refers to a non-aromatic cyclic hydrocarbon moiety, which may optionally contain one or more alkenylene groups as part of the ring structure.
• Cycloalkyl groups can include mono- or polycyclic (e.g., having 2, 3 or 4 fused rings) ring systems.
• moieties that have one or more aromatic rings fused (i.e., having a bond in common with) to the cycloalkyl ring, for example, benzo derivatives of cyclopentane, cyclopentene, cyclohexane, and the like.
• cycloalkyl is C 3 _i 2 cycloalkyl, which is monocyclic or bicyclic.
• Examplary cycloalkyl groups include 1 ,2,3,4-tetrahydro-naphthalene, cyclopropyl, cyclobutyl, cyclopentyl, cyclohexyl, cycloheptyl, cyclopentenyl, cyclohexenyl, cyclohexadienyl, cycloheptatrienyl, norbornyl, norpinyl, norcarnyl, adamantyl, and the like.
• the cycloalkyl group is cyclopropyl, cyclobutyl, cyclopentyl, or cyclohexyl.
• cycloalkylalkyl refers to a group of formula -alkylene- cycloalkyl.
• cycloalkylalkyl is C 3 _i 2 cycloalkyl-Ci_ 3 alkyl, wherein the cycloalkyl portion is monocyclic or bicyclic.
• C n _ m haloalkoxy refers to a group of formula -O-haloalkyl having n to m carbon atoms.
• An example haloalkoxy group is OCF 3 .
• the haloalkoxy group is fluorinated only.
• the alkyl group has 1 to 6 or 1 to 4 carbon atoms.
• C n _ m haloalkyl refers to an alkyl group having from one halogen atom to 2s+l halogen atoms which may be the same or different, where "s" is the number of carbon atoms in the alkyl group, wherein the alkyl group has n to m carbon atoms.
• the haloalkyl group is fluorinated only.
• the alkyl group has 1 to 6 or 1 to 4 carbon atoms.
• C n _ m fluoroalkyl refers to a C n _ m haloalkyl wherein the halogen atoms are selected from fluorine.
• fluorinated C n _ m haloalkyl is fluoromethyl, difluoromethyl, or trifluoromethyl.
• the alkyl group has 1 to 6 or 1 to 4 carbon atoms.
• heteroaryl refers to a monocyclic or polycyclic (e.g., having 2, 3 or 4 fused rings) aromatic hydrocarbon moiety, having one or more heteroatom ring members selected from nitrogen, sulfur and oxygen.
• heteroaryl is 5- to 10- membered Ci_9 heteroaryl, which is monocyclic or bicyclic and which has 1 , 2, 3, or 4 heteroatom ring members independently selected from nitrogen, sulfur and oxygen.
• heteroaryl group contains more than one heteroatom ring member
• the heteroatoms may be the same or different.
• Example heteroaryl groups include, but are not limited to, pyridine, pyrimidine, pyrazine, pyridazine, pyrrole, pyrazole, azolyl, oxazole, thiazole, imidazole, furan, thiophene, quinoline, isoquinoline, indole, benzothiophene, benzofuran, benzisoxazole, imidazo[l ,2-b]thiazole, purine, or the like.
• a five-membered ring heteroaryl is a heteroaryl with a ring having five ring atoms wherein one or more (e.g., 1 , 2, or 3) ring atoms are independently selected from N, O, and S.
• Exemplary five-membered ring heteroaryls are thienyl, furyl, pyrrolyl, imidazolyl, thiazolyl, oxazolyl, pyrazolyl, isothiazolyl, isoxazolyl, 1 ,2,3-triazolyl, tetrazolyl, 1 ,2,3-thiadiazolyl, 1 ,2,3-oxadiazolyl, 1 ,2,4-triazolyl, 1 ,2,4-thiadiazolyl, 1 ,2,4- oxadiazolyl, 1 ,3,4-triazolyl, 1 ,3,4-thiadiazolyl, and 1 ,3,4-oxadiazolyl.
• a six-membered ring heteroaryl is a heteroaryl with a ring having six ring atoms wherein one or more (e.g., 1 , 2, or 3) ring atoms are independently selected from N, O, and S.
• Exemplary six-membered ring heteroaryls are pyridyl, pyrazinyl, pyrimidinyl, triazinyl and pyridazinyl.
• heteroarylalkyl refers to a group of formula -alkylene- heteroaryl.
• heteroarylalkyl is Ci_g heteroaryl-Ci_3 alkyl, wherein the heteroaryl portion is monocyclic or bicyclic and has 1 , 2, 3, or 4 heteroatom ring members independently selected from nitrogen, sulfur and oxygen.
• heterocycloalkyl refers to non-aromatic ring system, which may optionally contain one or more alkenylene or alkynylene groups as part of the ring structure, and which has at least one heteroatom ring member independently selected from nitrogen, sulfur and oxygen.
• heterocycloalkyl groups contains more than one heteroatom, the heteroatoms may be the same or different.
• Heterocycloalkyl groups can include mono- or polycyclic (e.g., having 2, 3 or 4 fused rings) ring systems.
• heterocycloalkyl moieties that have one or more aromatic rings fused (i.e., having a bond in common with) to the non-aromatic ring, for example, 1 ,2,3,4- tetrahydro-quinoline and the like.
• the carbon atoms or heteroatoms in the ring(s) of the heterocycloalkyl group can be oxidized to form a carbonyl, or sulfonyl group (or other oxidized linkage) or a nitrogen atom can be quaternized.
• heterocycloalkyl is 5- to 10-membered C2-9 heterocycloalkyl, which is monocyclic or bicyclic and which has 1 , 2, 3, or 4 heteroatom ring members independently selected from nitrogen, sulfur and oxygen.
• heterocycloalkyl groups include 1 ,2,3,4- tetrahydro-quinoline, azetidine, azepane, pyrrolidine, piperidine, piperazine, morpholine, thiomorpholine, pyran, and a 2-oxo-l ,3-oxazolidine ring.
• heterocycloalkylalkyl refers to a group of formula -alkylene-heterocycloalkyl.
• heterocycloalkylalkyl is C2-9 heterocycloalkyl-Ci_3 alkyl, wherein the heterocycloalkyl portion is monocyclic or bicyclic and has 1 , 2, 3, or 4 heteroatom ring members independently selected from nitrogen, sulfur and oxygen.
• the compounds described herein can be asymmetric (e.g., having one or more stereocenters). All stereoisomers, such as enantiomers and diastereomers, are intended unless otherwise indicated.
• asymmetrically substituted carbon atoms can be isolated in optically active or racemic forms.
• Methods on how to prepare optically active forms from optically inactive starting materials are known in the art, such as by resolution of racemic mixtures or by stereoselective synthesis.
• Cis and trans geometric isomers of the compounds of the present invention are described and may be isolated as a mixture of isomers or as separated isomeric forms.
• Resolution of racemic mixtures of compounds can be carried out by any of numerous methods known in the art.
• An example method includes fractional
• Suitable resolving agents for fractional recrystallization methods are, for example, optically active acids, such as the D and L forms of tartaric acid, diacetyltartaric acid, dibenzoyltartaric acid, mandelic acid, malic acid, lactic acid or the various optically active camphorsulfonic acids such as ⁇ -camphorsulfonic acid.
• optically active acids such as the D and L forms of tartaric acid, diacetyltartaric acid, dibenzoyltartaric acid, mandelic acid, malic acid, lactic acid or the various optically active camphorsulfonic acids such as ⁇ -camphorsulfonic acid.
• resolving agents suitable for fractional crystallization methods include stereoisomerically pure forms of a- methylbenzylamine (e.g., S and R forms, or diastereomerically pure forms), 2- phenylglycinol, norephedrine, ephedrine, N-methylephedrine, cyclohexylethylamine, 1,2- diaminocyclohexane, and the like.
• Resolution of racemic mixtures can also be carried out by elution on a column packed with an optically active resolving agent (e.g., dinitrobenzoylphenylglycine).
• an optically active resolving agent e.g., dinitrobenzoylphenylglycine
• Suitable elution solvent composition can be determined by one skilled in the art.
• Tautomeric forms result from the swapping of a single bond with an adjacent double bond together with the concomitant migration of a proton.
• Tautomeric forms include prototropic tautomers which are isomeric protonation states having the same empirical formula and total charge.
• Example prototropic tautomers include ketone - enol pairs, amide - imidic acid pairs, lactam - lactim pairs, amide - imidic acid pairs, enamine - imine pairs, and annular forms where a proton can occupy two or more positions of a heterocyclic system, for example, IH- and 3H-imidazole, 1H-, 2H- and 4H- 1,2,4-triazole, IH- and 2H- isoindole, and IH- and 2H-pyrazole.
• Tautomeric forms can be in equilibrium or sterically locked into one form by appropriate substitution.
• Compounds of the invention can also include all isotopes of atoms occurring in the intermediates or final compounds.
• Isotopes include those atoms having the same atomic number but different mass numbers.
• isotopes of hydrogen include tritium and deuterium.
• 1, 2, or 3 CH 2 or CH groups in the cyclobutyl ring of Formula I are replaced by a CHD or CD 2 group.
• some embodiments of the compounds of Formula I may have a deuterium atom attached to one atom of the cyclobutyl ring:
• compound as used herein is meant to include all stereoisomers, geometric iosomers, tautomers, and isotopes of the structures depicted.
• Compounds herein identified by name or structure as one particular tautomeric form are intended to include other tautomeric forms unless otherwise specified (e.g., in the case of purine rings, unless otherwise indicated, when the compound name or structure has the 9H tautomer, it is understood that the 7H tautomer is also encompassed).
• All compounds, and pharmaceutically acceptable salts thereof, can be found together with other substances such as water and solvents (e.g. hydrates and solvates) or can be isolated.
• the compounds of the invention, or salts thereof are substantially isolated.
• substantially isolated is meant that the compound is at least partially or substantially separated from the environment in which it was formed or detected.
• Partial separation can include, for example, a composition enriched in the compounds of the invention.
• Substantial separation can include compositions containing at least about 50%, at least about 60%, at least about 70%, at least about 80%, at least about 90%), at least about 95%, at least about 97%, or at least about 99% by weight of the compounds of the invention, or salt thereof. Methods for isolating compounds and their salts are routine in the art.
• phrases "pharmaceutically acceptable” is employed herein to refer to those compounds, materials, compositions, and/or dosage forms which are, within the scope of sound medical judgment, suitable for use in contact with the tissues of human beings and animals without excessive toxicity, irritation, allergic response, or other problem or complication, commensurate with a reasonable benefit/risk ratio.
• ambient temperature and “room temperature,” as used herein, are understood in the art, and refer generally to a temperature, e.g. a reaction temperature, that is about the temperature of the room in which the reaction is carried out, for example, a temperature from about 20 °C to about 30 °C.
• the present invention also includes pharmaceutically acceptable salts of the compounds described herein.
• pharmaceutically acceptable salts refers to derivatives of the disclosed compounds wherein the parent compound is modified by converting an existing acid or base moiety to its salt form.
• examples of pharmaceutically acceptable salts include, but are not limited to, mineral or organic acid salts of basic residues such as amines; alkali or organic salts of acidic residues such as carboxylic acids; and the like.
• the pharmaceutically acceptable salts of the present invention include the conventional non-toxic salts of the parent compound formed, for example, from nontoxic inorganic or organic acids.
• the pharmaceutically acceptable salts of the present invention can be synthesized from the parent compound which contains a basic or acidic moiety by conventional chemical methods.
• such salts can be prepared by reacting the free acid or base forms of these compounds with a stoichiometric amount of the appropriate base or acid in water or in an organic solvent, or in a mixture of the two; generally, non-aqueous media like ether, ethyl acetate, alcohols (e.g., methanol, ethanol, iso-propanol, or butanol) or acetonitrile (ACN) are preferred.
• non-aqueous media like ether, ethyl acetate, alcohols (e.g., methanol, ethanol, iso-propanol, or butanol) or acetonitrile (ACN) are preferred.
• non-aqueous media like ether, ethyl acetate, alcohols (e.g., methanol, ethanol, iso-propanol, or butanol) or acetonitrile (ACN) are preferred.
• ACN acetonitrile
• the reactions for preparing compounds of the invention can be carried out in suitable solvents which can be readily selected by one of skill in the art of organic synthesis.
• suitable solvents can be substantially non-reactive with the starting materials (reactants), the intermediates, or products at the temperatures at which the reactions are carried out, e.g., temperatures which can range from the solvent's freezing temperature to the solvent's boiling temperature.
• a given reaction can be carried out in one solvent or a mixture of more than one solvent.
• suitable solvents for a particular reaction step can be selected by the skilled artisan.
• Preparation of compounds of the invention can involve the protection and deprotection of various chemical groups.
• the need for protection and deprotection, and the selection of appropriate protecting groups, can be readily determined by one skilled in the art.
• the chemistry of protecting groups can be found, for example, in Wuts and Greene, Protective Groups in Organic Synthesis, 4th ed., John Wiley & Sons: New Jersey, (2007), which is incorporated herein by reference in its entirety.
• Reactions can be monitored according to any suitable method known in the art.
• product formation can be monitored by spectroscopic means, such as nuclear magnetic resonance spectroscopy (e.g., 1H or 13 C), infrared spectroscopy, spectrophotometry (e.g., UV-visible), mass spectrometry, or by chromatographic methods such as high performance liquid chromatography (HPLC) or thin layer chromatography (TLC).
• spectroscopic means such as nuclear magnetic resonance spectroscopy (e.g., 1H or 13 C), infrared spectroscopy, spectrophotometry (e.g., UV-visible), mass spectrometry, or by chromatographic methods such as high performance liquid chromatography (HPLC) or thin layer chromatography (TLC).
• HPLC high performance liquid chromatography
• TLC thin layer chromatography
• Useful intermediates 3-4 can be made according to the methods outlined in Scheme 1.
• the heterocycloalkyl ring compound 3-1 (such as tert-butyl 4- hydroxypiperidine-l-carboxylate) can be reacted with phenol 7-2 under Mitsunobu coupling reaction condition to afford ether 3-3.
• the amino protecting group Pg 1 can be removed to afford intermediate 3-4.
• Pg 1 is an amine protecting
• Compounds of Formula I, wherein W is CH, can also be made by the methods shown in Scheme 2. Accordingly, compound 4-2 can be formed by reaction of the cyclobutanone 4-1 with a Horner- Wadsworth-Emmons reagent. A protected pyrazol-4- yl-pyrrolo[2,3-d]pyrimidineor pyrrol-3-yl-pyrrolo[2,3-d]pyrimidineof formula 4-3 is reacted with a protected alkene 4-2 in a Michael addition in the presence of a coupling agent to give compound 4-4. The ether protecting group can be removed from compound 4-4 to give an alcohol derivative 4-5, which can be oxidized to give the compound 4-6. Compound 4-6 can be converted to compound of formula 4-7 and 4-8 via reductive amination, which can be deprotected to remove Pi to give the compound of Formula I.
• Reductive alkylation of a Boc-protected compound g with this ketone employing a zinc-modified reducing reagent produced by the combination of zinc (II) chloride and sodium cyanoborohydride (J. Org. Chem. 1985, 50, pp. 1927-1932) can provide the cis- and trans- isomers h and i in roughly equal proportions. These may be separated by chiral HPLC into the individual isomers, and the stereochemistry can be determined by nOe.
• Removal of the Boc protecting group can be effected by stirring with aqueous HC1 in THF to afford the base, which can then be functionalized according to the following methods, then deprotected by the use of TFA in DCM followed by ethylenediamine in methanol to afford compounds described herein.
• amides can be formed by reaction with carboxylic acids using BOP or HATU as coupling agents, in the presence of either of the aforementioned bases.
• Ureas are formed from the cis- or trans- cyclobutylpiperazine starting materials either by reaction (in the presence of base) with an isocyanate, or with an intermediate formed by the combination of phosgene with an amine, or with a carbamoyl chloride.
• Sulfonamides are formed by reaction of the piperazine with sulfonyl chlorides or sulfamoyl chlorides in the presence of base.
• L CO for amides: AC0 2 H, BOP or HATU, TEA or DIPEA; or ACOCI, base
• L CO for ureas: ANCO, base; or A-H, COCI 2 , base; or ACOCI, base (e.g. carbamoyl chloride)
• Compound of Formula I can also be made by the methods shown in Scheme IV. Accordingly formula 4-2 can be formed by reaction of the cyclobutanone of formula 4-1 with a Horner- Wadsworth-Emmons reagent. A protected pyrazol-4-yl-pyrrolo[2,3- d]pyrimidine or pyrrol-3-yl-pyrrolo[2,3-d]pyrimidine of formula 4-3 is reacted with a protected alkene of formula 4-2 in a Michael addition in the presence of a coupling agent to give the compound of formula 4-4. Removal of ether protecting group of formula 4-4 gives an alcohol derivative of formula 4-5, which can be oxidized to give the compound of formula 4-6. The compound of formula 4-6 can be converted to compound of formula 4-7 and 4-8 via reductive amination, which can be deprotected to remove Pi to give the compound of Formula I.
• Compounds of the invention are JAK inhibitors, and the majority of the compounds of the invention are JAKl selective inhibitors.
• a JAKl selective inhibitor a compound that inhibits JAKl activity preferentially over other Janus kinases.
• the compounds of the invention preferentially inhibit JAKl over one or more of JAK2, JAK3, and TYK2.
• the compounds inhibit JAKl preferentially over JAK2 (e.g., have a JAK1/JAK2 IC 50 ratio >1).
• JAKl plays a central role in a number of cytokine and growth factor signaling pathways that, when dysregulated, can result in or contribute to disease states. For example, IL-6 levels are elevated in rheumatoid arthritis, a disease in which it has been suggested to have detrimental effects (Fonesca, J.E. et al, Autoimmunity Reviews, 8:538-42, 2009). Because IL-6 signals, at least in part, through JAKl, antagonizing IL-6 directly or indirectly through JAKl inhibition is expected to provide clinical benefit (Guschin, D., N., et al Embo J 14: 1421, 1995; Smolen, J. S., et al. Lancet 371 :987, 2008).
• JAKl is mutated resulting in constitutive undesirable tumor cell growth and survival (Mullighan CG, Proc Natl Acad Sci U S A.106:9414-8, 2009; Flex E., et al.J Exp Med. 205:751-8, 2008).
• JAKl inhibition In other autoimmune diseases and cancers elevated systemic levels of inflammatory cytokines that activate JAKl may also contribute to the disease and/or associated symptoms. Therefore, patients with such diseases may benefit from JAKl inhibition.
• Selective inhibitors of JAKl may be efficacious while avoiding unnecessary and potentially undesirable effects of inhibiting other JAK kinases.
• JAKl erythropoietin
• Tpo thrombopoietin
• Epo is a key growth factor for red blood cells production; hence a paucity of Epo-dependent signaling can result in reduced numbers of red blood cells and anemia (Kaushansky K, NEJM 354:2034-45, 2006).
• Tpo another example of a JAK2-dependent growth factor, plays a central role in controlling the proliferation and maturation of megakaryocytes - the cells from which platelets are produced (Kaushansky K, NEJM 354:2034-45, 2006). As such, reduced Tpo signaling would decrease megakaryocyte numbers (megakaryocytopenia) and lower circulating platelet counts (thrombocytopenia). This can result in undesirable and/or uncontrollable bleeding. Reduced inhibition of other JAKs, such as JAK3 and Tyk2, may also be desirable as humans lacking functional version of these kinases have been shown to suffer from numerous maladies such as severe-combined immunodeficiency or
• JAK1 inhibitor with reduced affinity for other JAKs would have significant advantages over a less-selective inhibitor with respect to reduced side effects involving immune suppression, anemia and thrombocytopenia.
• a JAK-associated disease can include any disease, disorder or condition that is directly or indirectly linked to expression or activity of the JAK, including overexpression and/or abnormal activity levels.
• a JAK-associated disease can also include any disease, disorder or condition that can be prevented, ameliorated, or cured by modulating JAK activity.
• the JAK-associated disease is a JAK1 -associated disease.
• JAK-associated diseases include diseases involving the immune system including, for example, organ transplant rejection (e.g., allograft rejection and graft versus host disease).
• organ transplant rejection e.g., allograft rejection and graft versus host disease.
• JAK-associated diseases include autoimmune diseases such as multiple sclerosis, rheumatoid arthritis, juvenile arthritis, psoriatic arthritis, type I diabetes, lupus, psoriasis, inflammatory bowel disease, ulcerative colitis, Crohn's disease, myasthenia gravis, immunoglobulin nephropathies, myocarditis, autoimmune thyroid disorders, and the like.
• the autoimmune disease is an autoimmune bullous skin disorder such as pemphigus vulgaris (PV) or bullous pemphigoid (BP).
• JAK-associated diseases include allergic conditions such as asthma, food allergies, atopic dermatitis and rhinitis.
• Further examples of JAK- associated diseases include viral diseases such as Epstein Barr Virus (EBV), Hepatitis B, Hepatitis C, HIV, HTLV 1 , Varicella-Zoster Virus (VZV) and Human Papilloma Virus (HPV).
• EBV Epstein Barr Virus
• HBV Epstein Barr Virus
• Hepatitis B Hepatitis C
• HIV HTLV 1
• VZV Varicella-Zoster Virus
• HPV Human Papilloma Virus
• JAK-associated disease examples include diseases associated with cartilage turnover, for example, gouty arthritis, septic or infectious arthritis, reactive arthritis, reflex sympathetic dystrophy, algodystrophy, Tietze syndrome, costal athropathy, osteoarthritis deformans endemica, Mseleni disease, Handigodu disease, degeneration resulting from fibromyalgia, systemic lupus erythematosus, scleroderma, or ankylosing spondylitis.
• diseases associated with cartilage turnover for example, gouty arthritis, septic or infectious arthritis, reactive arthritis, reflex sympathetic dystrophy, algodystrophy, Tietze syndrome, costal athropathy, osteoarthritis deformans endemica, Mseleni disease, Handigodu disease, degeneration resulting from fibromyalgia, systemic lupus erythematosus, scleroderma, or ankylosing spondylitis.
• JAK-associated disease examples include congenital cartilage malformations, including hereditary chrondro lysis, chrondrodysplasias, and
• pseudochrondrodysplasias e.g., microtia, enotia, and metaphyseal chrondrodysplasia.
• JAK-associated diseases or conditions include skin disorders such as psoriasis (for example, psoriasis vulgaris), atopic dermatitis, skin rash, skin irritation, skin sensitization (e.g., contact dermatitis or allergic contact dermatitis).
• skin disorders such as psoriasis (for example, psoriasis vulgaris), atopic dermatitis, skin rash, skin irritation, skin sensitization (e.g., contact dermatitis or allergic contact dermatitis).
• certain substances including some pharmaceuticals when topically applied can cause skin sensitization.
• co-administration or sequential administration of at least one JAK inhibitor of the invention together with the agent causing unwanted sensitization can be helpful in treating such unwanted sensitization or dermatitis.
• the skin disorder is treated by topical administration of at least one JAK inhibitor of the invention.
• the JAK-associated disease is cancer including those characterized by solid tumors (e.g., prostate cancer, renal cancer, hepatic cancer, pancreatic cancer, gastric cancer, breast cancer, lung cancer, cancers of the head and neck, thyroid cancer, glioblastoma, Kaposi's sarcoma, Castleman's disease, melanoma etc.), hematological cancers (e.g., lymphoma, leukemia such as acute lymphoblastic leukemia, acute myelogenous leukemia (AML) or multiple myeloma), and skin cancer such as cutaneous T-cell lymphoma (CTCL) and cutaneous B-cell lymphoma.
• CTCLs include Sezary syndrome and mycosis fungoides.
• the JAK inhibitors described herein, or in combination with other JAK inhibitors, such as those reported in U.S. Ser. No. 1 1/637,545, which is incorporated herein by reference in its entirety, can be used to treat inflammation- associated cancers.
• the cancer is associated with inflammatory bowel disease.
• the inflammatory bowel disease is ulcerative colitis.
• the inflammatory bowel disease is Crohn's disease.
• the inflammation-associated cancer is colitis-associated cancer.
• the inflammation-associated cancer is colon cancer or colorectal cancer.
• the cancer is gastric cancer, gastrointestinal carcinoid tumor, gastrointestinal stromal tumor (GIST), adenocarcinoma, small intestine cancer, or rectal cancer.
• JAK-associated diseases can further include those characterized by expression of: JAK2 mutants such as those having at least one mutation in the pseudo-kinase domain (e.g., JAK2V617F); JAK2 mutants having at least one mutation outside of the pseudo- kinase domain; JAK1 mutants; JAK3 mutants; erythropoietin receptor (EPOR) mutants; or deregulated expression of CRLF2.
• JAK2 mutants such as those having at least one mutation in the pseudo-kinase domain (e.g., JAK2V617F); JAK2 mutants having at least one mutation outside of the pseudo- kinase domain; JAK1 mutants; JAK3 mutants; erythropoietin receptor (EPOR) mutants; or deregulated expression of CRLF2.
• JAK-associated diseases can further include myeloproliferative disorders (MPDs) such as polycythemia vera (PV), essential thrombocythemia (ET), myelofibrosis with myeloid metaplasia (MMM), primary myelofibrosis (PMF), chronic myelogenous leukemia (CML), chronic myelomonocytic leukemia (CMML), hypereosinophilic syndrome (HES), systemic mast cell disease (SMCD), and the like.
• MPDs myeloproliferative disorders
• PV polycythemia vera
• E essential thrombocythemia
• MMM myelofibrosis with myeloid metaplasia
• PMF primary myelofibrosis
• CML chronic myelogenous leukemia
• CMML chronic myelomonocytic leukemia
• HES hypereosinophilic syndrome
• SMCD systemic mast cell disease
• the myeloproliferative disorder is myelofibrosis (e.g., primary
• PMF myelofibrosis
• Post-PV/ET MF post polycythemia vera/essential thrombocythemia myelofibrosis
• the present invention further provides methods of treating psoriasis or other skin disorders by administration of a topical formulation containing a compound of the invention.
• JAK inhibitors described herein can be used to treat pulmonary arterial hypertension.
• the present invention further provides a method of treating dermatological side effects of other pharmaceuticals by administration of the compound of the invention.
• numerous pharmaceutical agents result in unwanted allergic reactions which can manifest as acneiform rash or related dermatitis.
• Example pharmaceutical agents that have such undesirable side effects include anti-cancer drugs such as gefitinib, cetuximab, erlotinib, and the like.
• the compounds of the invention can be administered systemically or topically (e.g., localized to the vicinity of the dermatitis) in combination with (e.g., simultaneously or sequentially) the pharmaceutical agent having the undesirable dermatological side effect.
• the compound of the invention can be administered topically together with one or more other pharmaceuticals, where the other pharmaceuticals when topically applied in the absence of a compound of the invention cause contact dermatitis, allergic contact sensitization, or similar skin disorder.
• compositions of the invention include topical formulations containing the compound of the invention and a further pharmaceutical agent which can cause dermatitis, skin disorders, or related side effects.
• JAK-associated diseases include inflammation and inflammatory diseases.
• Example inflammatory diseases include sarcoidosis, inflammatory diseases of the eye (e.g., crizis, uveitis, scleritis, conjunctivitis, or related disease), inflammatory diseases of the respiratory tract (e.g. , the upper respiratory tract including the nose and sinuses such as rhinitis or sinusitis or the lower respiratory tract including bronchitis, chronic obstructive pulmonary disease, and the like), inflammatory myopathy such as
• the JAK inhibitors described herein can further be used to treat ischemia reperfusion injuries or a disease or condition related to an inflammatory ischemic event such as stroke or cardiac arrest.
• the JAK inhibitors described herein can further be used to treat anorexia, cachexia, or fatigue such as that resulting from or associated with cancer.
• the JAK inhibitors described herein can further be used to treat restenosis, sclerodermas, or fibrosis.
• the JAK inhibitors described herein can further be used to treat conditions associated with hypoxia or astrogliosis such as, for example, diabetic retinopathy, cancer, or neurodegeneration. See, e.g., Dudley, A.C. et al. Biochem. J.
• JAK inhibitors described herein can be used to treat Alzheimer's disease.
• the JAK inhibitors described herein can further be used to treat other
• SIRS systemic inflammatory response syndrome
• JAK inhibitors described herein can further be used to treat gout and increased prostate size due to, e.g., benign prostatic hypertrophy or benign prostatic hyperplasia.
• JAK-associated diseases include bone resorption diseases such as osteoporosis, osteoarthritis. Bone resorption can also be associated with other conditions such as hormonal imbalance and/or hormonal therapy, autoimmune disease (e.g. osseous sarcoidosis), or cancer (e.g. myeloma).
• the reduction of the bone resorption due to the JAK inhibitors can be about 10%, about 20%>, about 30%>, about 40%>, about 50%>, about 60%, about 70%, about 80%, or about 90%.
• JAK inhibitors described herein can further be used to treat a dry eye disorder.
• dry eye disorder is intended to encompass the disease states summarized in a recent official report of the Dry Eye Workshop (DEWS), which defined dry eye as "a multifactorial disease of the tears and ocular surface that results in symptoms of discomfort, visual disturbance, and tear film instability with potential damage to the ocular surface. It is accompanied by increased osmolality of the tear film and inflammation of the ocular surface.” Lemp, "The Definition and
• the dry eye disorder is selected from aqueous tear-deficient dry eye (ADDE) or evaporative dry eye disorder, or appropriate combinations thereof.
• the dry eye disorder is Sjogren syndrome dry eye (SSDE).
• the dry eye disorder is non-Sjogren syndrome dry eye (NSSDE).
• the present invention provides a method of treating conjunctivitis, uveitis (including chronic uveitis), chorioditis, retinitis, cyclitis, sclieritis, episcleritis, or ulceris; treating inflammation or pain related to corneal transplant, LASIK (laser assisted in situ keratomileusis), photorefractive keratectomy, or LASEK (laser assisted sub-epithelial keratomileusis); inhibiting loss of visual acuity related to corneal transplant, LASIK, photorefractive keratectomy, or LASEK; or inhibiting transplant rejection in a patient in need thereof, comprising administering to the patient a therapeutically effective amount of the compound of the invention, or a pharmaceutically acceptable salt thereof.
• the compounds of the invention can be used to treat respiratory dysfunction or failure associated with viral infection, such as influenza and SARS.
• the present invention provides a compound of Formula I, pharmaceutically acceptable salt thereof, as described in any of the embodiments herein, for use in a method of treating any of the diseases or disorders described herein.
• the present invention provides the use of a compound of Formula I as described in any of the embodiments herein, for the preparation of a medicament for use in a method of treating any of the diseases or disorders described herein.
• the present invention provides a compound of Formula I as described herein, or a pharmaceutically acceptable salt thereof, for use in a method of modulating a JAK1.
• the present invention also provides use of a compound of Formula I as described herein, or a pharmaceutically acceptable salt thereof, for the preparation of a medicament for use in a method of modulating a JAK1.
• contacting refers to the bringing together of indicated moieties in an in vitro system or an in vivo system.
• "contacting" a JAK with a compound of the invention includes the administration of a compound of the present invention to an individual or patient, such as a human, having a JAK, as well as, for example, introducing a compound of the invention into a sample containing a cellular or purified preparation containing the JAK.
• the phrase "therapeutically effective amount” refers to the amount of active compound or pharmaceutical agent that elicits the biological or medicinal response that is being sought in a tissue, system, animal, individual or human by a researcher, veterinarian, medical doctor or other clinician.
• the term "treating" or “treatment” refers to one or more of (1) preventing the disease; for example, preventing a disease, condition or disorder in an individual who may be predisposed to the disease, condition or disorder but does not yet experience or display the pathology or symptomatology of the disease; (2) inhibiting the disease; for example, inhibiting a disease, condition or disorder in an individual who is experiencing or displaying the pathology or symptomatology of the disease, condition or disorder (i.e., arresting further development of the pathology and/or symptomatology); and (3) ameliorating the disease; for example, ameliorating a disease, condition or disorder in an individual who is experiencing or displaying the pathology or
• symptomatology of the disease, condition or disorder i.e., reversing the pathology and/or symptomatology
• decreasing the severity of disease i.e., decreasing the severity of disease.
• One or more additional pharmaceutical agents such as, for example,
• chemotherapeutics anti-inflammatory agents, steroids, immunosuppressants, as well as Bcr-Abl, Flt-3, RAF and FAK kinase inhibitors such as, for example, those described in WO 2006/056399, which is incorporated herein by reference in its entirety, or other agents can be used in combination with the compounds described herein for treatment of JAK-associated diseases, disorders or conditions.
• the one or more additional pharmaceutical agents can be administered to a patient simultaneously or sequentially.
• Example chemotherapeutic include proteosome inhibitors ⁇ e.g., bortezomib), thalidomide, revlimid, and DNA-damaging agents such as melphalan, doxorubicin, cyclophosphamide, vincristine, etoposide, carmustine, and the like.
• Example steroids include coriticosteroids such as dexamethasone or prednisone.
• Example Bcr-Abl inhibitors include the compounds, and pharmaceutically acceptable salts thereof, of the genera and species disclosed in U.S. Pat. No. 5,521,184, WO 04/005281, and U.S. Ser. No. 60/578,491, all of which are incorporated herein by reference in their entirety.
• Example suitable Flt-3 inhibitors include compounds, and their pharmaceutically acceptable salts, as disclosed in WO 03/037347, WO 03/099771, and WO 04/046120, all of which are incorporated herein by reference in their entirety.
• Example suitable RAF inhibitors include compounds, and their pharmaceutically acceptable salts, as disclosed in WO 00/09495 and WO 05/028444, both of which are incorporated herein by reference in their entirety.
• Example suitable FAK inhibitors include compounds, and their pharmaceutically acceptable salts, as disclosed in WO 04/080980, WO 04/056786, WO 03/024967, WO 01/064655, WO 00/053595, and WO 01/014402, all of which are incorporated herein by reference in their entirety.
• one or more of the compounds of the invention can be used in combination with one or more other kinase inhibitors including imatinib, particularly for treating patients resistant to imatinib or other kinase inhibitors.
• one or more JAK inhibitors of the invention can be used in combination with a chemotherapeutic in the treatment of cancer, such as multiple myeloma, and may improve the treatment response as compared to the response to the chemotherapeutic agent alone, without exacerbation of its toxic effects.
• additional pharmaceutical agents used in the treatment of multiple myeloma can include, without limitation, melphalan, melphalan plus prednisone [MP],
• doxorubicin doxorubicin
• dexamethasone dexamethasone
• Velcade bortezomib
• Further additional agents used in the treatment of multiple myeloma include Bcr-Abl, Flt-3, RAF and FAK kinase inhibitors. Additive or synergistic effects are desirable outcomes of combining a JAK inhibitor of the present invention with an additional agent.
• resistance of multiple myeloma cells to agents such as dexamethasone may be reversible upon treatment with a JAK inhibitor of the present invention.
• the agents can be combined with the present compounds in a single or continuous dosage form, or the agents can be administered simultaneously or sequentially as separate dosage forms.
• a corticosteroid such as dexamethasone is administered to a patient in combination with at least one JAK inhibitor where the dexamethasone is administered intermittently as opposed to continuously.
• combinations of one or more JAK inhibitors of the invention with other therapeutic agents can be administered to a patient prior to, during, and/or after a bone marrow transplant or stem cell transplant.
• the additional therapeutic agent is fluocinolone acetonide (Retisert®), or rimexolone (AL-2178, Vexol, Alcon).
• the additional therapeutic agent is cyclosporine
• the additional therapeutic agent is a corticosteroid.
• the corticosteroid is triamcinolone, dexamethasone, fluocinolone, cortisone, prednisolone, or flumetholone.
• the additional therapeutic agent is selected from:
• the additional therapeutic agent is an anti-angiogenic agent, cholinergic agonist, TRP-1 receptor modulator, a calcium channel blocker, a mucin secretagogue, MUC 1 stimulant, a calcineurin inhibitor, a corticosteroid, a P2Y2 receptor agonist, a muscarinic receptor agonist, another JAK inhibitor, Bcr-Abl kinase inhibitor, Flt-3 kinase inhibitor, RAF kinase inhibitor, and FAK kinase inhibitor such as, for example, those described in WO 2006/056399, which is incorporated herein by reference in its entirety.
• the additional therapeutic agent is a tetracycline derivative (e.g., minocycline or doxycline).
• the additional therapeutic agent(s) are demulcent eye drops (also known as "artificial tears"), which include, but are not limited to, compositions containing polyvinylalcohol, hydroxypropyl methylcellulose, glycerin, polyethylene glycol (e.g. PEG400), or carboxymethyl cellulose. Artificial tears can help in the treatment of dry eye by compensating for reduced moistening and lubricating capacity of the tear film.
• the additional therapeutic agent is a mucolytic drug, such as N-acetyl-cysteine, which can interact with the mucoproteins and, therefore, to decrease the viscosity of the tear film.
• the additional therapeutic agent includes an antibiotic, antiviral, antifungal, anesthetic, anti-inflammatory agents including steroidal and nonsteroidal anti-inflammatories, and anti-allergic agents.
• suitable medicaments include aminoglycosides such as amikacin, gentamycin, tobramycin, streptomycin, netilmycin, and kanamycin; fluoroquinolones such as ciprofloxacin, norfloxacin, ofloxacin, trovafloxacin, lomefloxacin, levofloxacin, and enoxacin; naphthyridine;
• rifampins sulfonamides
• polymyxin chloramphenicol; neomycin; paramomycin; colistimethate; bacitracin; vancomycin; tetracyclines; rifampin and its derivatives ("rifampins");
• cycloserine beta-lactams; cephalosporins; amphotericins; fluconazole; flucytosine;
• natamycin natamycin; miconazole; ketoconazole; corticosteroids; diclofenac; flurbiprofen;
• ketorolac ketorolac
• suprofen cromolyn
• lodoxamide levocabastin
• naphazoline antazoline
• the compounds of the invention can be administered in the form of pharmaceutical compositions.
• These compositions can be prepared in a manner well known in the pharmaceutical art, and can be administered by a variety of routes, depending upon whether local or systemic treatment is desired and upon the area to be treated. Administration may be topical (including transdermal, epidermal, ophthalmic and to mucous membranes including intranasal, vaginal and rectal delivery), pulmonary ⁇ e.g., by inhalation or insufflation of powders or aerosols, including by nebulizer; intratracheal or intranasal), oral or parenteral.
• Parenteral administration includes intravenous, intraarterial, subcutaneous, intraperitoneal intramuscular or injection or infusion; or intracranial, e.g., intrathecal or intraventricular, administration.
• Parenteral administration can be in the form of a single bolus dose, or may be, for example, by a continuous perfusion pump.
• formulations for topical administration may include transdermal patches, ointments, lotions, creams, gels, drops, suppositories, sprays, liquids and powders.
• Conventional pharmaceutical carriers, aqueous, powder or oily bases, thickeners and the like may be necessary or desirable.
• compositions which contain, as the active ingredient, the compound of the invention or a pharmaceutically acceptable salt thereof, in combination with one or more pharmaceutically acceptable carriers
• composition is suitable for topical
• the active ingredient is typically mixed with an excipient, diluted by an excipient or enclosed within such a carrier in the form of, for example, a capsule, sachet, paper, or other container.
• an excipient serves as a diluent, it can be a solid, semi-solid, or liquid material, which acts as a vehicle, carrier or medium for the active ingredient.
• compositions can be in the form of tablets, pills, powders, lozenges, sachets, cachets, elixirs, suspensions, emulsions, solutions, syrups, aerosols (as a solid or in a liquid medium), ointments containing, for example, up to 10% by weight of the active compound, soft and hard gelatin capsules, suppositories, sterile injectable solutions, and sterile packaged powders.
• the active compound can be milled to provide the appropriate particle size prior to combining with the other ingredients. If the active compound is substantially insoluble, it can be milled to a particle size of less than 200 mesh. If the active compound is substantially water soluble, the particle size can be adjusted by milling to provide a substantially uniform distribution in the formulation, e.g. about 40 mesh.
• the compounds of the invention may be milled using known milling procedures such as wet milling to obtain a particle size appropriate for tablet formation and for other formulation types.
• Finely divided (nanoparticulate) preparations of the compounds of the invention can be prepared by processes known in the art, e.g., see International App. No. WO 2002/000196.
• excipients include lactose, dextrose, sucrose, sorbitol, mannitol, starches, gum acacia, calcium phosphate, alginates, tragacanth, gelatin, calcium silicate, microcrystalline cellulose, polyvinylpyrrolidone, cellulose, water, syrup, and methyl cellulose.
• the formulations can additionally include: lubricating agents such as talc, magnesium stearate, and mineral oil; wetting agents; emulsifying and suspending agents; preserving agents such as methyl- and propylhydroxy-benzoates; sweetening agents; and flavoring agents.
• the compositions of the invention can be formulated so as to provide quick, sustained or delayed release of the active ingredient after administration to the patient by employing procedures known in the art.
• compositions can be formulated in a unit dosage form, each dosage containing from about 5 to about 1,000 mg (1 g), more usually about 100 mg to about 500 mg, of the active ingredient.
• unit dosage forms refers to physically discrete units suitable as unitary dosages for human subjects and other mammals, each unit containing a predetermined quantity of active material calculated to produce the desired therapeutic effect, in association with a suitable pharmaceutical excipient.
• the compositions of the invention contain from about 5 mg to about 50 mg of the active ingredient.
• the active ingredient contains from about 5 mg to about 50 mg.
• One having ordinary skill in the art will appreciate that this embodies compounds or compositions containing about 5 mg to about 10 mg, about 10 mg to about 15 mg, about 15 mg to about 20 mg, about 20 mg to about 25 mg, about 25 mg to about 30 mg, about 30 mg to about 35 mg, about 35 mg to about 40 mg, about 40 mg to about 45 mg, or about 45 mg to about 50 mg of the active ingredient.
• the compositions of the invention contain from about 50 mg to about 500 mg of the active ingredient.
• the active ingredient contains from about 50 mg to about 500 mg of the active ingredient.
• One having ordinary skill in the art will appreciate that this embodies compounds or compositions containing about 50 mg to about 100 mg, about 100 mg to about 150 mg, about 150 mg to about 200 mg, about 200 mg to about 250 mg, about 250 mg to about 300 mg, about 350 mg to about 400 mg, or about 450 mg to about 500 mg of the active ingredient.
• the compositions of the invention contain from about 500 mg to about 1 ,000 mg of the active ingredient.
• the active ingredient One having ordinary skill in the art will appreciate that this embodies compounds or compositions containing about 500 mg to about 550 mg, about 550 mg to about 600 mg, about 600 mg to about 650 mg, about 650 mg to about 700 mg, about 700 mg to about 750 mg, about 750 mg to about 800 mg, about 800 mg to about 850 mg, about 850 mg to about 900 mg, about 900 mg to about 950 mg, or about 950 mg to about 1,000 mg of the active ingredient.
• the active compound may be effective over a wide dosage range and is generally administered in a pharmaceutically effective amount. It will be understood, however, that the amount of the compound actually administered will usually be determined by a physician, according to the relevant circumstances, including the condition to be treated, the chosen route of administration, the actual compound administered, the age, weight, and response of the individual patient, the severity of the patient's symptoms, and the like.
• the principal active ingredient is mixed with a pharmaceutical excipient to form a solid preformulation composition containing a homogeneous mixture of a compound of the present invention.
• a solid preformulation composition containing a homogeneous mixture of a compound of the present invention.
• the active ingredient is typically dispersed evenly throughout the composition so that the composition can be readily subdivided into equally effective unit dosage forms such as tablets, pills and capsules.
• This solid preformulation is then subdivided into unit dosage forms of the type described above containing from, for example, about 0.1 to about 1000 mg of the active ingredient of the present invention.
• the tablets or pills of the present invention can be coated or otherwise compounded to provide a dosage form affording the advantage of prolonged action.
• the tablet or pill can comprise an inner dosage and an outer dosage component, the latter being in the form of an envelope over the former.
• the two components can be separated by an enteric layer which serves to resist disintegration in the stomach and permit the inner component to pass intact into the duodenum or to be delayed in release.
• enteric layers or coatings such materials including a number of polymeric acids and mixtures of polymeric acids with such materials as shellac, cetyl alcohol, and cellulose acetate.
• liquid forms in which the compounds and compositions of the present invention can be incorporated for administration orally or by injection include aqueous solutions, suitably flavored syrups, aqueous or oil suspensions, and flavored emulsions with edible oils such as cottonseed oil, sesame oil, coconut oil, or peanut oil, as well as elixirs and similar pharmaceutical vehicles.
• compositions for inhalation or insufflation include solutions and suspensions in pharmaceutically acceptable, aqueous or organic solvents, or mixtures thereof, and powders.
• the liquid or solid compositions may contain suitable pharmaceutically acceptable excipients as described supra.
• the compositions are administered by the oral or nasal respiratory route for local or systemic effect.
• compositions in can be nebulized by use of inert gases. Nebulized solutions may be breathed directly from the nebulizing device or the nebulizing device can be attached to a face masks tent, or intermittent positive pressure breathing machine. Solution, suspension, or powder compositions can be administered orally or nasally from devices which deliver the formulation in an appropriate manner.
• Topical formulations can contain one or more conventional carriers.
• ointments can contain water and one or more hydrophobic carriers selected from, for example, liquid paraffin, polyoxyethylene alkyl ether, propylene glycol, white vaseline, and the like.
• Carrier compositions of creams can be based on water in combination with glycerol and one or more other components, e.g.
• topical formulations contain at least about 0.1, at least about 0.25, at least about 0.5, at least about 1 , at least about 2, or at least about 5 wt % of the compound of the invention.
• the topical formulations can be suitably packaged in tubes of, for example, 100 g which are optionally associated with instructions for the treatment of the select indication, e.g., psoriasis or other skin condition.
• compositions can be administered to a patient already suffering from a disease in an amount sufficient to cure or at least partially arrest the symptoms of the disease and its complications. Effective doses will depend on the disease condition being treated as well as by the judgment of the attending clinician depending upon factors such as the severity of the disease, the age, weight and general condition of the patient, and the like.
• compositions administered to a patient can be in the form of pharmaceutical compositions described above. These compositions can be sterilized by conventional sterilization techniques, or may be sterile filtered. Aqueous solutions can be packaged for use as is, or lyophilized, the lyophilized preparation being combined with a sterile aqueous carrier prior to administration.
• the pH of the compound preparations typically will be between 3 and 11, more preferably from 5 to 9 and most preferably from 7 to 8. It will be understood that use of certain of the foregoing excipients, carriers, or stabilizers will result in the formation of pharmaceutical salts.
• the therapeutic dosage of a compound of the present invention can vary according to, for example, the particular use for which the treatment is made, the manner of administration of the compound, the health and condition of the patient, and the judgment of the prescribing physician.
• the proportion or concentration of a compound of the invention in a pharmaceutical composition can vary depending upon a number of factors including dosage, chemical characteristics (e.g., hydrophobicity), and the route of administration.
• the compounds of the invention can be provided in an aqueous physiological buffer solution containing about 0.1 to about 10% w/v of the compound for parenteral administration. Some typical dose ranges are from about 1 ⁇ g/kg to about 1 g/kg of body weight per day.
• the dose range is from about 0.01 mg/kg to about 100 mg/kg of body weight per day.
• the dosage is likely to depend on such variables as the type and extent of progression of the disease or disorder, the overall health status of the particular patient, the relative biological efficacy of the compound selected, formulation of the excipient, and its route of administration. Effective doses can be extrapolated from dose-response curves derived from in vitro or animal model test systems.
• compositions of the invention can further include one or more additional pharmaceutical agents such as a chemotherapeutic, steroid, anti-inflammatory compound, or immunosuppressant, examples of which are listed hereinabove.
• additional pharmaceutical agents such as a chemotherapeutic, steroid, anti-inflammatory compound, or immunosuppressant, examples of which are listed hereinabove.
• the compound, or pharmaceutically acceptable salt thereof is administered as an ophthalmic composition.
• the methods comprise administration of the compound, or pharmaceutically acceptable salt thereof, and an ophthalmically acceptable carrier.
• the ophthalmic composition is a liquid composition, semi-solid composition, insert, film, microparticles or nanoparticles.
• the ophthalmic composition is a liquid composition. In some embodiments, the ophthalmic composition is a semi-solid composition. In some embodiments, the ophthalmic composition is an topical composition.
• the topical compositions include, but are not limited to liquid and semi-solid compositions. In some embodiments, the ophthalmic composition is a topical composition.
• the topical composition comprises aqueous solution, an aqueous suspension, an ointment or a gel.
• the ophthalmic composition is topically applied to the front of the eye, under the upper eyelid, on the lower eyelid and in the cul-de-sac.
• the ophthalmic composition is sterilized. The sterilization can be accomplished by known techniques like sterilizing filtration of the solution or by heating of the solution in the ampoule ready for use.
• the ophthalmic compositions of the invention can further contain pharmaceutical excipients suitable for the preparation of ophthalmic formulations. Examples of such excipients are preserving agents, buffering agents, chelating agents, antioxidant agents and salts for regulating the osmotic pressure.
• the term "ophthalmically acceptable carrier” refers to any material that can contain and release the compound, or pharmaceutically acceptable salt thereof, and that is compatible with the eye.
• the ophthalmically acceptable carrier is water or an aqueous solution or suspension, but also includes oils such as those used to make ointments and polymer matrices such as used in ocular inserts.
• the composition may be an aqueous suspension comprising the compound, or pharmaceutically acceptable salt thereof.
• Liquid ophthalmic compositions, including both ointments and suspensions may have a viscosity that is suited for the selected route of administration. In some embodiments, the ophthalmic composition has a viscosity in the range of from about 1,000 to about 30,000 centipoise.
• the ophthalmic compositions may further comprise one or more of surfactants, adjuvants, buffers, antioxidants, tonicity adjusters, preservatives (e.g., EDTA, BAK (benzalkonium chloride), sodium chlorite, sodium perborate, polyquaterium-1), thickeners or viscosity modifiers (e.g., carboxymethyl cellulose, hydroxymethyl cellulose, polyvinyl alcohol, polyethylene glycol, glycol 400, propylene glycol hydroxymethyl cellulose, hydroxpropyl-guar, hyaluronic acid, and hydroxypropyl cellulose) and the like.
• Additives in the formulation may include, but are not limited to, sodium chloride, sodium bicarbonate, sorbic acid, methyl paraben, propyl paraben, chlorhexidine, castor oil, and sodium perborate.
• Aqueous ophthalmic compositions generally do not contain physiologically or ophthalmically harmful constituents.
• purified or deionized water is used in the composition.
• the pH may be adjusted by adding any physiologically and ophthalmically acceptable pH adjusting acids, bases or buffers to within the range of about 5.0 to 8.5.
• Ophthalmically acceptable examples of acids include acetic, boric, citric, lactic, phosphoric, hydrochloric, and the like
• bases include sodium hydroxide, sodium phosphate, sodium borate, sodium citrate, sodium acetate, sodium lactate, tromethamine, trishydroxymethylamino-methane, and the like.
• Salts and buffers include citrate/dextrose, sodium bicarbonate, ammonium chloride and mixtures of the aforementioned acids and bases.
• the methods involve forming or supplying a depot of the therapeutic agent in contact with the external surface of the eye.
• a depot refers to a source of therapeutic agent that is not rapidly removed by tears or other eye clearance mechanisms. This allows for continued, sustained high concentrations of therapeutic agent to be present in the fluid on the external surface of the eye by a single application.
• absorption and penetration may be dependent on both the dissolved drug concentration and the contact duration of the external tissue with the drug containing fluid. As the drug is removed by clearance of the ocular fluid and/or absorption into the eye tissue, more drug is provided, e.g.
• the use of a depot may more easily facilitate loading of the ocular tissue for more insoluble therapeutic agents.
• the depot can remain for up to eight hours or more.
• the ophthalmic depot forms includes, but is not limited to, aqueous polymeric suspensions, ointments, and solid inserts.
• the ophthalmic composition is an ointment or gel.
• the ophthalmic composition is an oil-based delivery vehicle.
• the composition comprises a petroleum or lanolin base to which is added the active ingredient, usually as 0.1 to 2%, and excipients. Common bases may include, but are not limited to, mineral oil, petrolatum and combinations thereof.
• the ointment is applied as a ribbon onto the lower eyelid.
• the ophthalmic composition is an ophthalmic insert.
• the ophthalmic insert is biologically inert, soft, bio-erodible, viscoelastic, stable to sterilization after exposure to therapeutic agents, resistant to infections from air borne bacteria, bio- erodible, biocompatible, and/or viscoelastic.
• the insert comprises an ophthalmically acceptable matrix, e.g., a polymer matrix.
• the matrix is typically a polymer and the therapeutic agent is generally dispersed therein or bonded to the polymer matrix.
• the therapeutic agent may be slowly released from the matrix through dissolution or hydrolysis of the covalent bond.
• the polymer is bioerodible (soluble) and the dissolution rate thereof can control the release rate of the therapeutic agent dispersed therein.
• the polymer matrix is a biodegradable polymer that breaks down such as by hydrolysis to thereby release the therapeutic agent bonded thereto or dispersed therein.
• the matrix and therapeutic agent can be surrounded with an additional polymeric coating to further control release.
• the insert comprises a biodegradable polymer such as polycaprolactone (PCL), an
• the therapeutic agent is dispersed into the matrix material or dispersed amongst the monomer composition used to make the matrix material prior to
• the amount of therapeutic agent is from about 0.1 to about 50%, or from about 2 to about 20%.
• the biodegradable or bioerodible polymer matrix is used so that the spent insert does not have to be removed. As the biodegradable or bioerodible polymer is degraded or dissolved, the therapeutic agent is released.
• the ophthalmic insert comprises a polymer, including, but are not limited to, those described in Wagh, et al, "Polymers used in ocular dosage form and drug delivery systems", Asian J. Pharm., pages 12-17 (Jan. 2008), which is incorporated herein by reference in its entirety.
• the insert comprises a polymer selected from polyvinylpyrrolidone (PVP), an acrylate or methacrylate polymer or copolymer (e.g., Eudragit® family of polymers from Rohm or Degussa), hydroxymethyl cellulose, polyacrylic acid, poly(amidoamine) dendrimers, poly(dimethyl siloxane), polyethylene oxide, poly(lactide-co-glycolide), poly(2- hydroxyethylmethacrylate), poly(vinyl alcohol), or poly(propylene fumarate).
• the insert comprises Gelfoam® R.
• the insert is a polyacrylic acid of 450 kDa-cysteine conjugate.
• the ophthalmic composition is a ophthalmic film.
• the film is a soft-contact lens, such as ones made from copolymers of ⁇ , ⁇ -diethylacrylamide and methacrylic acid crosslinked with ethyleneglycol dimethacrylate.
• the ophthalmic compositon comprises microspheres or nanoparticles.
• the microspheres comprise gelatin.
• the microspheres are injected to the posterior segment of the eye, in the chroroidal space, in the sclera, intravitreally or sub-retinally.
• the microspheres or nanoparticles comprises a polymer including, but not limited to, those described in Wagh, et al. (ibid), which is incorporated herein by reference in its entirety.
• the polymer is chitosan, a polycarboxylic acid such as polyacrylic acid, albumin particles, hyaluronic acid esters, polyitaconic acid,
• the microspheres or nanoparticles comprise solid lipid particles.
• the ophthalmic composition comprises an ion-exchange resin.
• the ion-exchange resin is an inorganic zeolite or synthetic organic resin.
• the ion-exchange resin includes, but is not limited to, those described in Wagh, et al. (ibid), which is incorporated herein by reference in its entirety.
• the ion-exhange resin is a partially neutralized polyacrylic acid.
• the ophthalmic composition is an aqueous polymeric suspension.
• the therapeutic agent or a polymeric suspending agent is suspended in an aqueous medium.
• the aqueous polymeric suspensions may be formulated so that they retain the same or substantially the same viscosity in the eye that they had prior to administration to the eye. In some embodiments, they may be formulated so that there is increased gelation upon contact with tear fluid.
• Another aspect of the present invention relates to labeled compounds of the invention (radio-labeled, fluorescent-labeled, etc.) that would be useful not only in imaging techniques but also in assays, both in vitro and in vivo, for localizing and quantitating JAK in tissue samples, including human, and for identifying JAK ligands by inhibition binding of a labeled compound. Accordingly, the present invention includes JAK assays that contain such labeled compounds.
• the present invention further includes isotopically-labeled compounds of the invention.
• An “isotopically” or “radio-labeled” compound is a compound of the invention where one or more atoms are replaced or substituted by an atom having an atomic mass or mass number different from the atomic mass or mass number typically found in nature (i.e., naturally occurring). Suitable radionuclides that may be
• incorporated in compounds of the present invention include but are not limited to 3 H (also written as T for tritium), U C, 13 C, 14 C, 13 N, 15 N, 15 0, 17 0, 18 0, 18 F, 35 S, 36 C1, 82 Br, 75 Br,
• radionuclide that is incorporated in the instant radio-labeled compounds will depend on the specific application of that radio-labeled compound. For example, for in vitro JAK labeling and competition assays, compounds
• a “radio-labeled” or “labeled compound” is a compound that has incorporated at least one radionuclide. In some embodiments the
• radionuclide is selected from the group consisting of H, C, I , S and Br.
• the compound incorporates 1, 2, or 3 deuterium atoms.
• the present invention can further include synthetic methods for incorporating radio-isotopes into compounds of the invention. Synthetic methods for incorporating radio-isotopes into organic compounds are well known in the art, and an ordinary skill in the art will readily recognize the methods applicable for the compounds of invention.
• a labeled compound of the invention can be used in a screening assay to identify/evaluate compounds.
• a newly synthesized or identified compound (i.e., test compound) which is labeled can be evaluated for its ability to bind a JAK by monitoring its concentration variation when contacting with the JAK, through tracking of the labeling.
• a test compound (labeled) can be evaluated for its ability to reduce binding of another compound which is known to bind to a JAK (i.e., standard compound). Accordingly, the ability of a test compound to compete with the standard compound for binding to the JAK directly correlates to its binding affinity.
• the standard compound is labeled and test compounds are unlabeled. Accordingly, the concentration of the labeled standard compound is monitored in order to evaluate the competition between the standard compound and the test compound, and the relative binding affinity of the test compound is thus ascertained.
• kits useful for example, in the treatment or prevention of JAK-associated diseases or disorders, such as cancer, which include one or more containers containing a pharmaceutical composition comprising a therapeutically effective amount of a compound of the invention.
• kits can further include, if desired, one or more of various conventional pharmaceutical kit components, such as, for example, containers with one or more pharmaceutically acceptable carriers, additional containers, etc., as will be readily apparent to those skilled in the art.
• kits can also be included in the kit.
• Example 1 a 3- [(4- ⁇ cis-3-(cyanomethyl)-3- [4-(7H-pyrrolo [2,3-d] pyrimidin-4-yl)- 1H- pyrazol-l-yl] cyclobutyl ⁇ piperazin-l-yl)methyl]-5-fluorobenzonitrile
• tetrahydrofuran 80 mL was added. During the course of the addition, additional tetrahydrofuran (50 mL) was added into the receiving flask to facilitate stirring. Upon complete addition of the ketone, the bath was removed and the reaction allowed to reach room temperature and stirred overnight. The reaction mixture was partitioned between water and ethyl acetate and the aqueous was extracted with ethyl acetate a total of three times. The combined extracts were washed with brine, dried over sodium sulfate, decanted and concentrated.
• Step 5 cis and trans ⁇ 3- ⁇ [tert-butyl(diphenyl)silyl] oxy ⁇ - 1- [4-(7- ⁇ [2- (Mmethylsilyl)ethoxyJmethyl ⁇ -7H ⁇ yrrolo[2,3-dJpyrimidin-4-yl)-lH-pyrazol-l- yljcyclobutylj acetonitrile
• Step 6 cis and trans ⁇ 3-hydroxy-l-[4-(7- ⁇ [2-(trimethylsilyl)ethoxy]methyl ⁇ -7H- pyrrolo[2,3-d]pyrimidin-4-yl)-lH- razol-l-yl]cyclobutyl ⁇ acetonitrile
• Step 7 ⁇ 3-oxo-l-[4-(7- ⁇ [2-(trimethylsilyl)ethoxyJmethyl ⁇ -7H ⁇ yrrolo[2 -dJpyrimidin-4- yl)-lH-pyrazol-l-yl]cyclobutyl ⁇ acetonitrile
• Step 8 tert-butyl 4- ⁇ cis-3-(cyanomethyl)-3-[4-(7- ⁇ [2-(trimethylsilyl)ethoxy]methyl ⁇ -7H- pyrrolo[2,3-d]pyrimidin-4-yl)-lH-pyrazol-l-yl]cyclobutyl ⁇ piperazine-l-carboxylate; and tert-butyl 4- ⁇ trans-3-(cyanomethyl)-3-[4-(7- ⁇ [2-(trimethylsilyl)ethoxy]methyl ⁇ -7H- pyrrolo[2,3-d]pyrimidin-4-yl)-lH-pyrazol-l-yl]cyclobutyl ⁇ piperazine-l-carboxylate
• Step 9 ⁇ cis-3-piperazin-l-yl-l-[ 4-(7- ⁇ [ 2-(trimethylsilyl)ethoxy] methyl ⁇ -7H-pyrrolo [ 2, 3- d]pyrimidin-4-yl)-lH-pyrazol-l-yl]cyclobutyl ⁇ acetonitrile
• Tetrakis(triphenylphosphine)palladium(0) (0.04 g, 0.03 mmol) was added, the reaction vessel was sealed and heated in the microwave to 120 °C for 30 minutes. The mixture was partitioned between water and ethyl acetate. The aqueous was extracted with ethyl acetate a total of three times. The combined extracts were washed with water, then brine, dried over sodium sulfate, decanted and concentrated. The crude product was stirred in a 1 : 1 mix of TFA:DCM (4 mL) for 2 hours. The solvents were evaporated, and the residue was stirred with 0.3 mL ethylenediamine in methanol (4 mL) overnight.
• Example 2a 3-[(4- ⁇ cis-3-(cyanomethyl)-3-[4-(7H-pyrrolo[2,3-d]pyrimidin-4-yl)-lH- pyrazol-l-yl]cyclobutyl ⁇ piperazin-l-yl)methyl]-6-(dimethylamino)-2- fluorobenzonitrile
• the reaction mixture was partitioned between IN NaOH, brine and DCM. The layers were separated, and the aqueous layer was extracted with a further two portions of DCM. The combined organic extracts were dried over sodium sulfate, decanted and concentrated.
• the product was deprotected by stirring with 1 : 1 TFA:DCM for 2 hours. The solvent was then removed in vacuo, and the residue was stirred in a solution of methanol (1.5 mL) containing 0.3 mL ethylenediamine.
• the product was purified via preparative HPLC-MS (CI 8, eluting with a gradient of H 2 0/MeCN containing 0.15% NH 4 OH).
• Example 2b 3- [(4- ⁇ tr ans-3-(cyanomethyl)-3- [4-(7H-pyr rolo [2,3-d] pyrimidin-4-yl)- lH-pyrazol-l-yl]cyclobutyl ⁇ piperazin-l-yl)methyl]-6-(dimethylamino)-2- fluorobenzonitrile
• Example 2a The procedure as for Example 2a was followed, using ⁇ trans-3-piperazin-l-yl-l- [4-(7- ⁇ [2-(trimethylsilyl)ethoxy]methyl ⁇ -7H-pyrrolo[2,3-d]pyrimidin-4-yl)-lH-pyrazol- l-yl]cyclobutyl ⁇ acetonitrile (0.030 g, 0.061 mmol, from Example lb, Step 1) as starting material to afford product as the free base, in the same yield (0.015 g, 46%).
• Example 3a 4- ⁇ cis-3-(cyanomethyl)-3-[4-(7H-pyrrolo[2,3-d]pyrimidin-4-yl)-lH- pyrazol-l-yl]cyclobutyl ⁇ -N-[4-fluoro-2-(trifluoromethyl)phenyl]piperazine-l- carboxamide 2.4 x (trifluoroacetate) salt
• Example 3b 4- ⁇ 3-(cyanomethyl)-3- [4-(7H-pyrrolo [2,3-d] pyrimidin-4-yl)- 1H- pyrazol-l-yl]cyclobutyl ⁇ -N-[4-fluoro-2-(trifluoromethyl)phenyl]piperazine-l- carboxamide 2.3 x (trifluoroacetate salt
• Example 4a ⁇ cis-3-(4- ⁇ [(2S)-2-methylpyrrolidin-l-yl]carbonyl ⁇ piperazin-l-yl)-l-[4- (7H-pyrrolo[2,3-d]pyrimidin-4-yl)-lH-pyrazol-l-yl]cyclobutyl ⁇ acetonitrile
• Example 4b ⁇ trans-3-(4- ⁇ [(2S)-2-methylpyrrolidin-l-yl]carbonyl ⁇ piperazin-l-yl)-l- [4-(7H-pyr rolo [2,3-d] pyrimidin-4-yl)- -pyrazol- 1-yl] cyclobutyl ⁇ acetonitrile
• Triethylamine (0.0339 mL, 0.244 mmol) was again added followed by acetonitrile (0.3 mL) and tetrahydrofuran (0.32 mL) .
• acetonitrile 0.3 mL
• tetrahydrofuran 0.32 mL
• To this solution was added ⁇ trans- 3-piperazin-l-yl-l-[4-(7- ⁇ [2-(trimethylsilyl)ethoxy]methyl ⁇ -7H-pyrrolo[2,3-d]pyrimidin- 4-yl)-lH-pyrazol-l-yl]cyclobutyl ⁇ acetonitrile (0.030 g, 0.061 mmol, from Example lb, Step 1) and the reaction was stirred overnight. The solvent was then removed in vacuo.
• Example 6a ⁇ cis-3- ⁇ 4-[3-fluoro-2-(trifluoromethyl)isonicotinoyl]piperazin-l-yl ⁇ -l- [4-(7H-pyr rolo [2,3-d] pyrimidin-4-y - lH-pyrazol- 1-yl] cyclobutyl ⁇ acetonitrile
• the deprotection was completed by stirring with excess ethylenediamine (2.4 mL total added in portions) in methanol (20 mL). The reaction mixture was partitioned between water and ethyl acetate. The aqueous portion was extracted three times. The combined extracts were washed with brine, dried over sodium sulfate, decanted and concentrated. Flash chromatography, eluting with a gradient from 0-10% MeOH in DCM was used to purify product. The product, as a glass, was reconstituted in MeCN/H 2 0, frozen and lyophilized (260 mg, 39%).
• Example 6b ⁇ trans-3- ⁇ 4-[3-fluoro-2-(trifluoromethyl)isonicotinoyl]piperazin-l-yl ⁇ - l-[4-(7H-pyrrolo[2,3-d]pyrimidin-4- -lH-pyrazol-l-yl]cyclobutyl ⁇ acetonitrile
• N,N-dimethylformamide (6 mL) was prestirred for 10 minutes, followed by the addition of ⁇ trans-3-piperazin- 1 -yl- 1 -[4-(7- ⁇ [2-(trimethylsilyl)ethoxy]methyl ⁇ -7H-pyrrolo[2,3- d]pyrimidin-4-yl)-lH-pyrazol-l-yl]cyclobutyl ⁇ acetonitrile (0.600 g, 1.22 mmol, from Example lb, Step 1) in N,N-dimethylformamide (6 mL). The reaction was stirred overnight. The reaction mixture was partitioned between saturated sodium bicarbonate and ethyl acetate.
• the reaction mixture was partitioned between water and ethyl acetate, and the aqueous portion extracted a total of three times with ethyl acetate.
• the combined organic extracts were dried over sodium sulfate, decanted and concentrated. Flash chromatography, eluting with a gradient from 0-10%) MeOH/DCM was used to purify product.
• the product so obtained was re -purified by preparative HPLC-MS (C18, eluting with a gradient of H 2 0/MeCN containing 0.15% NH 4 OH).
• the eluent containing the desired mass was frozen and lyophilized to afford product as the free base (0.2 g, 30%).
• Example 7a [cis- 1- [4-(7H-pyrrolo [2,3-d] yrimidin-4-yl)- lH-pyrazol- 1-yl] -3-(4- ⁇ [2- (trifluoromethyl)pyrimidin-4-yl]carbonyl ⁇ piperazin-l-yl)cyclobutyl]acetonitrile
• the reaction was stirred overnight, then was diluted with ethyl acetate, and saturated sodium bicarbonate and brine were added. The layers separated and the organic layer was washed with dilute HC1, dried over sodium sulfate, decanted and concentrated.
• the crude product was deprotected by stirring with 1 :1 TFA:DCM for 2 hours, then solvents were evaporated and the deprotection was completed by stirring with excess ethylenediamine in methanol.
• the product was purified by preparative HPLC-MS (C18, eluting with a gradient of H 2 0/MeCN containing 0.15% NH 4 OH).
• Example 7b [trans- 1- [4-(7H-pyrrolo [2,3-d] pyrimidin-4-yl)- ⁇ -pyr azol- 1-yl] -3-(4- ⁇ [2-(trifluoromethyl)pyrimidin-4-yl]carbon l ⁇ piperazin-l-yl)cyclobutyl]acetonitrile
• Deprotection was effected by first stirring with trifluoroacetic acid (10 mL) in methylene chloride (10 mL) for 2 hours, followed by evaporation of solvent in vacuo, then stirring with methanol (6 mL, 200 mmol) containing ethylenediamine (0.5 mL, 7 mmol) overnight.
• the reaction mixture was partitioned between water and ethyl acetate, and the aqueous portion was extracted a further two times with ethyl acetate.
• the combined extracts were dried over sodium sulfate, filtered and concentrated. Flash chromatography was used to purify product, eluting with a gradient from 0-10% MeOH in DCM.
• the product was repurified preparative HPLC-MS (CI 8, eluting with a gradient of H 2 0/MeCN containing 0.1% TFA).Acetonitrile was removed from the eluent containing the desired mass via rotary evaporation, then the remaining aqueous solution was neutralized by the addition of sodium bicarbonate and extracted with ethyl acetate several times. The combined organic extracts were dried over sodium sulfate, filtered and concentrated. The product was re- purified by preparative HPLC-MS (CI 8, eluting with a gradient of H 2 0/MeCN containing 0.15% NH 4 OH).
• Example 8a ⁇ cis-3- [4-(3,5-difluorobenzoyl)piperazin-l-yl] -1- [4-(7H-pyrrolo [2,3- d] py r imidin-4-yl)- 1 H-py r azol- 1 -yl] cy clobutyl ⁇ acetonitrile
• Example 8b ⁇ trans-3-[4-(3,5-difluorobenzoyl)piperazin-l-yl]-l-[4-(7H-pyrrolo[2,3- d] py r imidin-4-yl)- 1 H-py r azol- 1 -yl] cy clobutyl ⁇ acetonitrile
• Example 9b ⁇ trans-3- ⁇ 4-[(2-chloro-5-fluoropyridin-3-yl)carbonyl]piperazin-l-yl ⁇ -l- [4-(7H-pyr rolo [2,3-d] pyrimidin-4-yl)- lH- razol- 1-yl] cyclobutyl ⁇ acetonitrile
• Example 10a ⁇ cis-3- ⁇ 4-[(5-fluoropyridin-3-yl)carbonyl]piperazin-l-yl ⁇ -l-[4-(7H- pyrrolo[2,3-d]pyrimidin-4-yl)-lH-pyrazol-l- l]cyclobutyl ⁇ acetonitrile
• the reaction was stirred for 3 hours, and was purified via preparative HPLC- MS (C18, eluting with a gradient of H 2 0/MeCN containing 0.15% NH 4 OH).
• the eluent containing the desired mass was evaporated to afford the clean SEM-protected intermediate.
• This was hydrogenated under 55 psi of hydrogen overnight in a degassed mixture of ethanol (5 mL) containing palladium on carbon (0.011 g, 0.010 mmol, 10%, wet Degussa type) and sodium bicarbonate (0.0259 g, 0.304 mmol).
• the reaction mixture was filtered, rinsed with ethanol and the solvent was removed in vacuo.
• Example 10b ⁇ trans-3- ⁇ 4-[(5-fluoropyridin-3-yl)carbonyl]piperazin-l-yl ⁇ -l-[4-(7H- pyrrolo[2,3-d]pyrimidin-4-yl)-lH-pyrazol-l-yl]cyclobutyl ⁇ acetonitrile
• Example 11a ⁇ cis-3- ⁇ 4-[2-(difluoromethyl)-3-fluoroisonicotinoyl]piperazin-l-yl ⁇ -l- [4-(7H-pyr rolo [2,3-d] pyrimidin-4-yl)- lH- razol- 1-yl] cyclobutyl ⁇ acetonitrile
• Tetrakis(triphenylphosphine)palladium(0) (0.59 g, 0.51 mmol) was added and the mixture was similarly degassed for a further 10 minutes.
• the reaction vessel was sealed and heated in the microwave for 25 minutes at 135 °C.
• the reaction mixture was filtered and purified using preparative HPLC (UV-detection) eluting with a gradient of
• Step 6 ⁇ cis-3- ⁇ 4-[2-(difluoromethyl)-3-fluoroisonicotinoyl]piperazin-l-yl ⁇ -l-[ 4-(7H- pyrrolo[2,3-d]pyrimidin-4-yl)-lH-pyrazol-l- l]cyclobutyl ⁇ acetonitrile
• Example 12a 3-[(4- ⁇ cis-3-(cyanomethyl)-3-[4-(7H-pyrrolo[2,3-d]pyrimidin-4-yl)-lH- pyrazol-l-yl]cyclobutyl ⁇ piperazin-l-yl)carbonyl]-5-fluorobenzonitrile
• Example 12b 3- [(4- ⁇ trans-3-(cyanomethyl)-3- [4-(7H-pyr rolo [2,3-d] pyrimidin-4-yl)- lH-pyrazol-l-yl]cyclobutyl ⁇ piperazin-l-yl)carbonyl]-5-fluorobenzonitrile
• Example 11a, Step 6 The procedure of Example 11a, Step 6 was followed, using ⁇ trans-3-piperazin-l- yl- 1 -[4-(7- ⁇ [2-(trimethylsilyl)ethoxy]methyl ⁇ -7H-pyrrolo[2,3-d]pyrimidin-4-yl)- 1 H- pyrazol-l-yl]cyclobutyl ⁇ acetonitrile (0.030 g, 0.061 mmol, prepared as in Example lb, Step 1) and 3-cyano-5-fluorobenzoic acid (0.015 g, 0.091 mmol, Oakwood) to afford product (0.01 g, 30%).
• Example 13a [cis-1- [4-(7H-pyrrolo [2,3-d] pyrimidin-4-yl)-lH-pyrazol-l-yl] -3-(4- ⁇ [4- (trifluoromethyl)- 1 ,3-thiazol-2-yl] carbonyl ⁇ piperazin- l-yl)cyclobutyl] acetonitrile
• Example 13b [trans-l-[4-(7H-pyrrolo[2,3-d]pyrimidin-4-yl)-lH-pyrazol-l-yl]-3-(4- ⁇ [4-(trifluoromethyl)-l,3-thiazol-2-yl]carbonyl ⁇ piperazin-l-yl)cyclobutyl]acetonitrile
• the product was deprotected by stirring with 1 : 1 TFA:DCM for 2 hours, followed by removal of solvent in vacuo, then stirred with ethylenediamine 0.2 mL in methanol until deprotection was complete.
• the product was purified via preparative HPLC-MS (CI 8, eluting with a gradient of H 2 0/MeCN containing 0.15% NH 4 OH). The eluent containing the desired mass was frozen and lyophilized to afford product as the free base (0.007 g, 20%).
• Example 14a [cis-1- [4-(7H-pyrrolo [2,3-d] pyrimidin-4-yl)-l H-pyrazol- 1-yl] -3-(4- ⁇ [6- (trifluoromethyl)pyrazin-2-yl]carbonyl ⁇ piperazin-l-yl)cyclobutyl]acetonitrile
• Example 15a ⁇ cis-3-[4-(3,4-difluorobenzoyl)piperazin-l-yl]-l-[4-(7H-pyrrolo[2,3- d] py r imidin-4-yl)- 1 H-py r azol- 1 -yl] cy clobutyl ⁇ acetonitrile
• Example 15b ⁇ trans-3-[4-(3,4-difluorobenzoyl)piperazin-l-yl]-l-[4-(7H-pyrrolo[2,3- d] py r imidin-4-yl)- 1 H-py r azol- 1 -yl] cy clobutyl ⁇ acetonitrile
• Example 15a The procedure of Example 15a was followed, on the same scale, using ⁇ trans-3- piperazin-l-yl-l-[4-(7- ⁇ [2-(trimethylsilyl)ethoxy]methyl ⁇ -7H-pyrrolo[2,3-d]pyrimidin-4- yl)-lH-pyrazol-l-yl]cyclobutyl ⁇ acetonitrile (prepared as in Example lb, Step 1) to afford product as the free base (0.01 g, 30%).
• Example 16a ⁇ cis-3-[4-(2-chloro-3,6-difluorobenzyl)piperazin-l-yl]-l-[4-(7H- pyrrolo[2,3-d]pyrimidin-4-yl)-lH-pyraz -l-yl]cyclobutyl ⁇ acetonitrile
• Example 16b ⁇ trans-3- [4-(2-chloro-3,6-difluor Plumbingzyl)piperazin- 1-yl] - 1- [4-(7H- pyrrolo[2,3-d]pyrimidin-4-yl)-lH-pyraz -l-yl]cyclobutyl ⁇ acetonitrile
• Example 16a The procedure of Example 16a was followed, on the same scale, using ⁇ trans-3- piperazin-l-yl-l-[4-(7- ⁇ [2-(trimethylsilyl)ethoxy]methyl ⁇ -7H-pyrrolo[2,3-d]pyrimidin-4- yl)-lH-pyrazol-l-yl]cyclobutyl ⁇ acetonitrile (0.030 g, 0.061 mmol, prepared as in Example lb, Step 1) to afford product as the free base (0.015 g, 47%).
• Example 15a The procedure of Example 15a was followed, using 3-fluoro-5- (trifluoromethyl)benzoyl chloride (17 mg, 0.076 mmol, Aldrich) and ⁇ cis-3-piperazin-l- yl- 1 -[4-(7- ⁇ [2-(trimethylsilyl)ethoxy]methyl ⁇ -7H-pyrrolo[2,3-d]pyrimidin-4-yl)- 1 H- pyrazol-l-yl]cyclobutyl ⁇ acetonitrile (0.025 g, 0.051 mmol, prepared as in Example la, Step 9) to afford product as the free base (11 mg, 40%).
• Example 20a ⁇ cis-1- [4-(7H-pyrrolo [2,3-d] pyrimidin-4-yl)-l H-pyrazol- 1-yl] -3-(4- ⁇ [6- (trifluoromethyl)pyridin-2-yl]carbonyl ⁇ piperazin-l-yl)cyclobutyl ⁇ acetonitrile
• Example 11a The method of Example 11a, Step 6 was followed, using 6- (trifluoromethyl)pyridine-2-carboxylic acid (0.014 g, 0.076 mmol, Matrix) and ⁇ cis-3- piperazin- 1 -yl- 1 -[4-(7- ⁇ [2-(trimethylsilyl)ethoxy]methyl ⁇ -7H-pyrrolo[2,3 -d]pyrimidin-4- yl)-lH-pyrazol-l-yl]cyclobutyl ⁇ acetonitrile (0.025 g, 0.051 mmol, prepared as in Example la, Step 9) to afford product as the free base (0.007 g, 20%).
• 6- (trifluoromethyl)pyridine-2-carboxylic acid 0.014 g, 0.076 mmol, Matrix
• Example 20b ⁇ trans-l-[4-(7H-pyrrolo[2,3-d]pyrimidin-4-yl)-lH-pyrazol-l-yl]-3-(4- ⁇ [6-(trifluoromethyl)pyridin-2-yl]carbonyl ⁇ piperazin-l-yl)cyclobutyl ⁇ acetonitrile
• Example 11a The method of Example 11a was followed, using 6-(trifluoromethyl)pyridine-2- carboxylic acid (0.012 g, 0.061 mmol, Matrix) and ⁇ trans-3-piperazin-l-yl-l-[4-(7- ⁇ [2- (trimethylsilyl)ethoxy]methyl ⁇ -7H-pyrrolo[2,3-d]pyrimidin-4-yl)- 1 H-pyrazol- 1 - yl]cyclobutyl ⁇ acetonitrile (0.020 g, 0.040 mmol, prepared as in Example lb, Step 1) to afford product as the free base (0.006 g, 30%).
• Example 21a ⁇ cis-3-(4- ⁇ [6-(difluoromethyl)pyridin-2-yl]carbonyl ⁇ piperazin-l-yl)-l- [4-(7H-pyr rolo [2,3-d] pyrimidin-4-yl)- 1 H- razol- 1-yl] cyclobutyl ⁇ acetonitrile
• Example 11a The procedure of Example 11a (Step 6) was followed, using 6- (difluoromethyl)pyridine-2-carboxylic acid (0.016 g, 0.091 mmol, from Step 2) and ⁇ cis- 3-piperazin-l-yl-l-[4-(7- ⁇ [2-(trimethylsilyl)ethoxy]methyl ⁇ -7H-pyrrolo[2,3-d]pyrimidin- 4-yl)-lH-pyrazol-l-yl]cyclobutyl ⁇ acetonitrile (0.030 g, 0.061 mmol, prepared as in Example la, Step 9), except that in the work up after coupling, dilute HC1 wash was omitted.
• Example 21b ⁇ trans-3-(4- ⁇ [6-(difluoromethyl)pyridin-2-yl]carbonyl ⁇ piperazin-l-yl)- l-[4-(7H-pyrrolo[2,3-d]pyrimidin-4-yl)-lH-pyrazol-l-yl]cyclobutyl ⁇ acetonitrile
• Example 11a The procedure of Example 11a (Step 6) was followed, using 6- (difluoromethyl)pyridine-2-carboxylic acid (0.016 g, 0.091 mmol, Example 21a, Step 2) and ⁇ trans-3 -piperazin- 1 -yl- 1-[4-(7- ⁇ [2-(trimethylsilyl)ethoxy]methyl ⁇ -7H- pyrrolo[2,3-d]pyrimidin-4-yl)-lH-pyrazol-l-yl]cyclobutyl ⁇ acetonitrile (0.030 g, 0.061 mmol, prepared as in Example lb, Step 1) except that in the workup after coupling, the dilute HCl wash was omitted.
• Example 22 ⁇ cis-3- ⁇ 4-[2-fluoro-3-(trifluoromethyl)benzoyl]piperazin-l-yl ⁇ -l-[4-(7H- pyrrolo[2,3-d]pyrimidin-4-yl)-lH-pyrazol-l-yl]cyclobutyl ⁇ acetonitrile
• Example 8b The procedure of Example 8b was followed, using ⁇ cis-3-piperazin-l-yl-l-[4-(7- ⁇ [2-(trimethylsilyl)ethoxy]methyl ⁇ -7H-pyrrolo[2,3-d]pyrimidin-4-yl)- 1 H-pyrazol- 1 - yl]cyclobutyl ⁇ acetonitrile (25 mg, 0.051 mmol, from Example la, Step 9) and 2-fluoro-3- (trifluoromethyl)benzoyl chloride (23 mg, 0.101 mmol). Purification afforded product as the free base (15 mg, 54%).
• Example 23a ⁇ cis-3- ⁇ 4-[(5-fluoropyridin-3-yl)methyl]piperazin-l-yl ⁇ -l-[4-(7H- pyrrolo[2,3-d]pyrimidin-4-yl)-lH-pyrazol-l-yl]cyclobutyl ⁇ acetonitrile
• the reaction mixture was partitioned between water and ethyl acetate. The aqueous portion was extracted a further two times with ethyl acetate. The combined extracts were washed with water, then brine, dried over sodium sulfate, decanted and concentrated.
• the crude product was deprotected by first stirring the residue in a 1 : 1 mix of TFA:DCM (4 mL) for 2 hours, followed by removal of the solvents in vacuo and then stirring with 0.2 mL ethylenediamine in 2 mL methanol overnight. The solution was filtered and the product was purified via preparative HPLC-MS (CI 8, eluting with a gradient of H 2 0/MeCN containing 0.15% NH 4 OH).
• Example 23b ⁇ trans-3- ⁇ 4-[(5-fluoropyridin-3-yl)methyl]piperazin-l-yl ⁇ -l-[4-(7H- pyrrolo[2,3-d]pyrimidin-4-yl)-lH-pyrazol-l-yl]cyclobutyl ⁇ acetonitrile
• Example 23a The procedure of Example 23a was followed, using ⁇ trans-3-piperazin-l-yl-l-[4- (7- ⁇ [2-(trimethylsilyl)ethoxy]methyl ⁇ -7H-pyrrolo[2,3-d]pyrimidin-4-yl)- 1 H-pyrazol- 1 - yl]cyclobutyl ⁇ acetonitrile (0.030 g, 0.061 mmol, prepared as in Example lb, Step 1) and 5-fluoronicotinaldehyde (0.011 g, 0.085 mmol). Purification by the same method afforded product as the free base (0.01 g, 30%).
• Example 24a ⁇ cis-3- ⁇ 4-[(2-isopropylpyrimidin-4-yl)carbonyl]piperazin-l-yl ⁇ -l-[4- (7H-pyrrolo[2,3-d]pyrimidin-4-yl)-lH-pyrazol-l-yl]cyclobutyl ⁇ acetonitrile
• Step 3 of Example 21a was followed, using 2-isopropylpyrimidine-4-carboxylic acid (0.013 g, 0.076 mmol, ChemBridge), and ⁇ cis-3-piperazin-l-yl-l-[4-(7- ⁇ [2- (trimethylsilyl)ethoxy]methyl ⁇ -7H-pyrrolo[2,3-d]pyrimidin-4-yl)- 1 H-pyrazol- 1 - yl]cyclobutyl ⁇ acetonitrile (0.025 g, 0.051 mmol, prepared according to the procedure in Example la) to afford the product as the free base (0.010 g, 38%).
• 2-isopropylpyrimidine-4-carboxylic acid 0.013 g, 0.076 mmol, ChemBridge
• Example 25 ⁇ trans-3-[4-(piperidin-l-ylcarbonyl)piperazin-l-yl]-l-[4-(7H- pyrrolo[2,3-d]pyrimidin-4-yl)-lH-pyrazol-l-yl]cyclobutyl ⁇ acetonitrile
• Piperidine (0.020 mL, 0.203 mmol, Aldrich) was dissolved in methylene chloride (0.18 mL) and acetonitrile (0.5 mL), and 1.89 M phosgene in toluene (0.161 mL, 0.304 mmol) was introduced, followed by diisopropylethylamine (0.177 mL, 1.01 mmol). The reaction mixture was stirred for 1 hour, and the solvent and excess phosgene was removed in vacuo. N,N-Diisopropylethylamine (0.100 mL, 0.574 mmol) was again added, followed by acetonitrile (0.5 mL).
• the crude product was deprotected by stirring with 1 : 1 TFA:DCM for 2 hours, then evaporation, followed by stirring with excess ethylenediamine in methanol until deprotection was complete.
• the product was purified via preparative HPLC-MS (CI 8, eluting with a gradient of H 2 0/MeCN containing 0.15% NH 4 OH).
• the eluent containing the desired mass was frozen and lyophilized to afford product as the free base (0.02 g, 40%).
• Example 26 ⁇ cis-3- ⁇ 4- [4-fluoro-3-(trifluor omethoxy)benzoyl] piperazin- 1-yl ⁇ - 1- [4- (7H-pyrrolo[2,3-d]pyrimidin-4-yl)-lH-pyrazol-l-yl]cyclobutyl ⁇ acetonitrile
• the mixture was stirred for one hour and was diluted with ethyl acetate and water. The mixture was shaken and the layers separated. The organic layer was washed with water, 0. IN NaOH and sat. NaCl solution, dried over sodium sulfate, decanted and concentrated. The residue was dissolved in a 1 : 1 mixture of DCM:TFA, and stirred for 1 hour. The solvents were removed in vacuo and the residue was dissolved in 1 mL methanol and 0.2 ml ethylenediamine. This solution was stirred for one hour. The product was purified via preparative HPLC-MS (CI 8, eluting with a gradient of H 2 0/MeCN containing 0.15% NH 4 OH).
• Example 27 ⁇ cis-3-(4- ⁇ [3-fluoro-5-(trifluoromethyl)pyridin-2-yl] carbonyl ⁇ piperazin- l-yl)-l-[4-(7H-pyrrolo[2,3-d]pyrimidin-4-yl)-lH-pyrazol-l-yl]cyclobutyl ⁇ acetonitrile
• Example 24b ⁇ trans-3- ⁇ 4- [(2-isopropylpyrimidin-4-yl)carbonyl] piperazin- 1-yl ⁇ - 1- [4- (7H-pyrrolo[2,3-d]pyrimidin-4-yl)-lH-pyrazol-l-yl]cyclobutyl ⁇ acetonitrile
• Step 3 of Example 21a was followed, using 2-isopropylpyrimidine-4-carboxylic acid (0.010 g, 0.061 mmol, ChemBridge), and ⁇ trans-3-piperazin-l-yl-l-[4-(7- ⁇ [2- (trimethylsilyl)ethoxy]methyl ⁇ -7H-pyrrolo[2,3-d]pyrimidin-4-yl)- 1 H-pyrazol- 1 - yl]cyclobutyl ⁇ acetonitrile (0.020 g, 0.040 mmol, prepared according to the procedure in Example lb, Step 1) to afford the product as the free base (0.008 g, 40%).
• 2-isopropylpyrimidine-4-carboxylic acid 0.010 g, 0.061 mmol, ChemBridge
• Example 9a ⁇ cis-3- ⁇ 4- [(2-chloro-5-fluoropyridin-3-yl)carbonyl] piperazin-l-yl ⁇ -l- [4- (7H-pyrrolo[2,3-d]pyrimidin-4-yl)-lH-pyrazol-l-yl]cyclobutyl ⁇ acetonitrile
• Example 28 ⁇ cis-3- ⁇ 4-[4-chlorobenzoyl]piperazin-l-yl ⁇ -l-[4-(7H-pyrrolo[2,3- d] py r imidin-4-yl)- 1 H-p razol- 1 -yl] cy clobutyl ⁇ acetonitrile
• Example 8b The procedure of Example 8b was followed, using ⁇ cis-3-piperazin-l-yl-l-[4-(7- ⁇ [2-(trimethylsilyl)ethoxy]methyl ⁇ -7H-pyrrolo[2,3-d]pyrimidin-4-yl)- 1 H-pyrazol- 1 - yl]cyclobutyl ⁇ acetonitrile (25 mg, 0.051 mmol, from Example la, Step 9) and 4- Chlorobenzoic acid chloride (17.8 mg, 0.101 mmol), to afford product as the free base (15 mg, 59%).
• Example 29 ⁇ cis-3- ⁇ 4-[2-fluoro-4-(trifluoromethyl)benzoyl]piperazin-l-yl ⁇ -l-[4-(7H- pyrrolo[2,3-d]pyrimidin-4-yl)-lH-pyrazol-l-yl]cyclobutyl ⁇ acetonitrile 2.3 x
• the reaction mixture was partitioned between 1 N NaOH and ethyl acetate. The organic layer was dried over sodium sulfate, decanted and concentrated.
• the crude product was deprotected by stirring in a solution of 1 : 1 DCM: TFA for 1 hour, then evaporation, and stirring with excess ethylenediamine in methanol until deprotection was complete.
• the product was purified via preparative HPLC-MS (C18, eluting with a gradient of H 2 0/MeCN containing 0.1% TFA). The eluent containing the desired mass was frozen and lyophilized to afford product as the 2.3 x TFA salt.
• Step 1 tert-butyl 4- ⁇ cis-3-(cyanomethyl)-3-[4-(7- ⁇ [2- (trimethylsilyl)ethoxy]methyl ⁇ -7H-pyrrolo[2,3-d]pyrimidin-4-yl)-lH-pyrazol-l- ylj cyclobutyljpiperazine-l -carboxylate-dl and tert-butyl 4- ⁇ trans-3-(cyanomethyl)-3-[4- (7- ⁇ [ 2-(trimethylsilyl)ethoxy] methyl ⁇ - 7H-pyrrolo[ 2, 3-d]pyrimidin-4-yl)-lH-pyrazol-l- ylj cyclobutyljpiperazine-l -carbox late-dl
• Example 30 The procedure of Example 30, Step 2 was followed, using Peak 2 produced in Example 30, Step 1 : tert-butyl 4- ⁇ trans-3-(cyanomethyl)-3-[4-(7- ⁇ [2- (trimethylsilyl)ethoxy]methyl ⁇ -7H-pyrrolo[2,3-d]pyrimidin-4-yl)- 1 H-pyrazol- 1 - yl]cyclobutyl ⁇ piperazine-l-carboxylate-dl (0.076 g, 0.13 mmol) to afford the trans- product, which was used without further purification (47 mg, 74%).
• LCMS (M+H) + 494.0.
• N,N-Diisopropylethylamine (0.10 mL, 0.57 mmol) followed by N,N- Dimethylcarbamoyl chloride (25 ⁇ , 0.27 mmol, Aldrich) were added. After a reaction time of 1.5 hours, solvent was removed in vacuo. The crude product was stirred with 1 : 1 TFA:DCM for 2 hours, then evaporated and stirred with excess ethylenediamine (0.2 mL) in methanol until deprotection was complete. The product was purified via preparative HPLC-MS (C 18 , eluting with a gradient of H 2 0/MeCN containing 0.15% NH 4 OH).
• Example 33 ⁇ trans-3-(4- ⁇ 3-[(dimethylamino)methyl]-5-fluorobenzoyl ⁇ piperazin-l- yl)-l-[4-(7H-pyrrolo[2,3-d]pyrimidin-4-yl)-lH-pyrazol-l-yl]cyclobutyl ⁇ acetonitrile
• Example 34 ⁇ trans-3-(4- ⁇ 3-[(dimethylamino)methyl]-5-fluorobenzyl ⁇ piperazin-l- yl)-l-[4-(7H-pyrrolo[2,3-d]pyrimidin-4-yl)-lH-pyrazol-l-yl]cyclobutyl ⁇ acetonitrile
• Example 35 ⁇ trans-3-[4-(ethylsulfonyl)piperazin-l-yl]-l-[4-(7H-pyrrolo[2,3- d] py r imidin-4-yl)- 1 H-py r azol- 1 -yl] cy clobutyl ⁇ acetonitrile
• Example 36 ⁇ trans-3-[4-(cyclopropylsulfonyl)piperazin-l-yl]-l-[4-(7H-pyrrolo[2,3- d] py r imidin-4-yl)- 1 H-py r azol- 1 -yl] cy clobutyl ⁇ acetonitrile
• Example 37 4- ⁇ trans-3-(cyanomethyl)-3-[4-(7H-pyrrolo[2,3-d]pyrimidin-4-yl)-lH- pyrazol-l-yl]cyclobutyl ⁇ -N,N-dimethylpiperazine-l-sulfonamide
• Example 39 ⁇ trans-3- ⁇ 4-[3-[(dimethylamino)methyl]-5- (trifluoromethyl)benzoyl]piperazin-l-yl ⁇ -l-[4-(7H-pyrrolo[2,3-d]pyrimidin-4-yl)- lH-pyrazol-l-yl]cyclobutyl ⁇ acetonitrile
• the reaction was continued for 2 hours.
• the reaction mixture was diluted with ethyl acetate and water, shaken, and the layers separated.
• the organic layer was washed with water, 0. IN NaOH and saturated NaCl solution, dried over sodium sulfate and concentrated.
• the residue was dissolved in a 1 : 1 mixture of DCM:TFA, stirred for 1 hour, and solvents were removed in vacuo.
• the residue was dissolved in 1 mL methanol, and 0.2 mL of ethylenediamine was added. The reaction was stirred until deprotection was complete.
• Example 40 ⁇ cis-3-(4- ⁇ 3-[(dimethylamino)methyl]-5-fluorophenoxy ⁇ piperidin-l-yl)- l-[4-(7H-pyrrolo[2,3-d]pyrimidin-4-yl)-lH-pyrazol-l-yl]cyclobutyl ⁇ acetonitrile; and ⁇ trans-3-(4- ⁇ 3-[(dimethylamino)methyl]-5-fluorophenoxy ⁇ piperidin-l-yl)-l-[4-(7H- pyrrolo[2,3-d]pyrimi in-4-yl)-lH-pyrazol-l-yl]cyclobutyl ⁇ acetonitrile
• Step 4 ⁇ 3-oxo-l-[4-(7- ⁇ [2-(trimethylsilyl)ethoxyJmethyl ⁇ -7H ⁇ yrrolo[2 -dJpyrimidin-4- yl)-lH-pyrazol-l-yl]cyclobutyl ⁇ acetonitrile
• the tube was sealed and evacuated and refilled with N 2 (3x). The sealed tube was then heated at 80 °C for 20 hours. The reaction was diluted with water and ethyl acetate. The aqueous layer was extracted with ethyl acetate once. The combined organic solutions were washed with brine, dried over Na 2 S0 4 , filtered and concentrated. The crude was purified with preparative LCMS (CI 8 column eluting with a gradient of ACN/H 2 0 containing 0.1% TFA) to afford the desired product (180 mg, 89%). LCMS (M+H) + : 353.2.
• Step 8 ⁇ cis-3-(4- ⁇ 3-[ (dimethylamino)methyl]-5-fluorophenoxy ⁇ piperidin-l-yl)-l-[4-(7- ⁇ [2-(trimethylsilyl)ethoxy]methyl ⁇ -7H-pyrrolo[2,3-d]pyrimidin-4-yl ⁇ yl] cyclobutyljacetonitrile; and ⁇ trans-3-(4- ⁇ 3-[ (dimethylamino)methyl] -5- fluorophenoxyjpiperidin-l-yl)-l-[4-(7- ⁇ [2-(trimethylsilyl)ethoxy]methylj-7H- pyrrolof 2, 3-dJpyrimidin-4-yl)-lH-pyrazol-l-ylJ cyclobutyljacetonitrile
• Step 9 ⁇ cis-3-(4- ⁇ 3-[ (dimethylamino)methyl]-5-fluorophenoxyjpiperidin-l-yl)-l-[4-(7H- pyrrolo [2, 3-d] pyrimidin-4-yl)- lH-pyrazol- 1-yl] cyclobutyljacetonitrile; and ⁇ trans-3-(4- ⁇ 3-[(dimethylamino)methyl]-5-fluorophenoxyjpiperidin-l-yl)-l-[4-(7H-pyrrolo[2,3- d]pyrimidin-4-yl)-lH-pyrazol-l-yl] cyclobutyljacetonitrile
• Trans isomer was prepared in same manner, using ⁇ trans-3-(4- ⁇ 3- [(dimethylamino)methyl]-5-fluorophenoxy ⁇ piperidin-l -yl)- 1 -[4-(7- ⁇ [2- (trimethylsilyl)ethoxy]methyl ⁇ -7H-pyrrolo[2,3-d]pyrimidin-4-yl)- 1 H-pyrazol- 1 - yl]cyclobutyl ⁇ acetonitrile (isomer 2 from last step) as starting material.
• Example 41 ⁇ cis-3-[4-(3-fluoro-5- ⁇ [(2S)-2-methylpyrrolidin-l- yl]methyl ⁇ phenoxy)piperidin-l-yl]-l-[4-(7H-pyrrolo[2,3-d]pyrimidin-4-yl)-lH- pyrazol-l-yl]cyclobutyl ⁇ acetonitrile; and ⁇ trans-3-[4-(3-fluoro-5- ⁇ [(2S)-2- methylpyrrolidin-l-yl]methyl ⁇ phenoxy)piperidin-l-yl]-l-[4-(7H-pyrrolo[2,3- d]pyrimidin-4- -lH-pyrazol-l-yl]cyclobutyl ⁇ acetonitrile
• Step 4 ⁇ cis-3-[4-(3-fluoro-5- ⁇ [ (2S)-2-methylpyrrolidin-l-yl]methyl ⁇ phenoxy)piperidin-l- ylJ-l-[4-(7- ⁇ f2-(trimethylsilyl)ethoxyJmethyl ⁇ -7H ⁇ yrrolof2 -dJpyrimidin-4-yl)-lH ⁇ pyrazol-l -ylj cyclobutylj acetonitrile; and ⁇ trans-3-[4-(3-fluoro-5- ⁇ [ (2S)-2- methylpyrrolidin-l -yl] methyl jphenoxy)piperidin-l -ylj-l -f4-(7- ⁇ [2- (trimethylsilyl)ethoxyJmethyl ⁇ -7H ⁇ yrrolo[2 -dJpyrimidin-4-yl)-lH-pyrazol-l- yl] cyclobutylj acetonitrile
• Step 5 ⁇ cis-3-[4-(3-fluoro-5- ⁇ [ (2S)-2-methylpyrrolidin-l-yl]methyl ⁇ phenoxy)piperidin-l- yl]-l-[ 4-(7H-pyrrolo[2, 3-d]pyrimidin-4-yl)-lH-pyrazol-l-yl]cyclobutyl ⁇ acetonitrile; and ⁇ trans-3-[4-(3-fluoro-5- ⁇ [(2S)-2-methylpyrrolidin-l -ylJmethyl ⁇ phenoxy)piperidin-l-ylJ- l-[4-(7H-pyrrolo [2,3-d] 'pyrimidin-4-yl)-lH-pyrazol-l-ylJcyclobutyl ⁇ acetonitrile
• Example 136 The title compound was prepared according to the method of Example 136, using ⁇ cis-3-piperazin- 1 -yl- 1 -[4-(7- ⁇ [2-(trimethylsilyl)ethoxy]methyl ⁇ -7H-pyrrolo[2,3- d]pyrimidin-4-yl)-lH-pyrazol-l-yl]cyclobutyl ⁇ acetonitrile (40.0 mg, 0.0812 mmol, from Step 9 of Example la) to afford product as the free base (12.3 mg, 28%).
• the reaction mixture was partitioned between ethyl acetate and water. The organic layer was washed with water, 0.1 N NaOH and sat. NaCl, dried over sodium sulfate and concentrated. The residue was dissolved in N,N- dimethylformamide (1.0 mL) and zinc cyanide (57 mg, 0.48 mmol) was added. The reaction mixture was degassed by bubbling a stream of nitrogen through the mixture for 10 minutes. Tetrakis(triphenylphosphine)palladium(0) (19 mg, 0.016 mmol) was added. The reaction was heated in the microwave to 120 °C for 30 minutes. The reaction was worked up by partition between water and ethyl acetate.

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